FREVOI  During the next week, you can get it for free at http://www.macheist.com - If this is considered spam, please delete it, but I think that this is a really good tip. ;)  
(Version 3.2.1)

PAGUCA  they should implement facebook right now.

im not using it anymore because of that  
(Version 3.2)

RPLUSJ  Twitterrific is an excellent desktop solution for Twitter, especially for users who are looking for a minimalistic user-interface and have no desire to spend hours every day organizing follower groups or engaging in endless back-and-forth conversations.

If your workflow is like mine, you simply want to get your updates quickly and post a Tweet with as little hassle - and in as few key strokes - as possible. Twitterrific does this with a simple keyboard shortcut. It's easy on the eyes, well designed from a UI point of view, and is light on resources.

Sadly, the Mac version is being neglected by the developers and is lacking at least one useful feature for "speed" users, like myself... a retweet shortcut. Search would be a nice addition, too.

If you don't want to pay to register the app, Pwitter is a similar, free program, albeit not quite as pretty.  
(Version 3.2)

PENGUIRL  Twitterific for Mac seems to have stagnated as all efforts appear to be focused on Twitterific for iPhone. If the Mac version had the features of the iPhone version that would be great.  
(Version 3.2)

LANDI TRANCE  Twitterrific is the best i like it .  
(Version 3.2)

YOSHINATSU  I actually have had a really nice experience with Twitterrific, I don't even GET why Tweetie became so popular all of a sudden.  
(Version 3.2)

FROMAGE-HEAD  Configure to quit ?  
(Version 3.2)

GCOGHILL  I was hoping for a beefier feature list for this update. I like Twitterific (tried the rest, keep coming back) but it desperately needs a way to separately view Direct Messages and Replies (tabs, or whatever).

Including a URL shortener (choice of multiple services with account linking would be nice) is also something I would like to see, but not on the top of the list.

And while I am on the feature request soapbox, I'd also like to see an option to open links in the background, an "unread" count in the "title bar" (or whatever that top portion is on an HUD window). A pref to prune read tweets after X hours/days. And a pref to allow clicking of the Growl alerts to jump to the respective Tweet.

Some sort of Groups feature would be nice as well.

I did contact the devs a while back and was told that many of these were on the list for future updates, but was not given any sort of timeframe.  
(Version 3.2)

PENGUIRL  This update address' my primary complaint, which was all messages being marked unread upon launch. The addition of https communication is long overdue but finally included. It's the best Twitter desktop app for Tiger, and possibly OS X. My only complaint is that it is overpriced, really it shouldn't cost more than $10. If the ability to manage your Twitter account were included it would be worth it's current price.  
(Version 3.2)

MARTIN PALJAK  Fails with basic security and transmits passwords in plaintext. Never crashed, would be useful if done correctly. Inability to configure the SSL settings via GUI makes the ease of use bad.  
(Version 3.1)

MARTIN PALJAK  If you're a casual user of online services (which twitter users often are), do not use this. It's a software you have to pay for, which in its default configuration sends your twitter password over the wire in PLAINTEXT which means every schoolboy with a laptop can sniff your twitter password in a public hotspot. Without manual command line configuration (hey! this is mac, not linux) you can't change this insecure behavior, which is not acceptable in 2009. A new software where this should have been fixed has not been published in almost a year. In the light of recent twitter "password problems" I would actually stay away from twitter or at least 3rd party applications anyway.  
(Version 3.1)

ALJUK  I think I'll stick with version 2.1 - it works really well and it's free. Sounds like the more recent version has taken a wrong turn. Hourly adverts? Jeez, what's that all about...  
(Version 3.1)

ZANGIEF  I love Twitter, and when I found this app it looked really cool, so I gave it a try. It's very sleek and has a nice interface, however: I have found Twitterrific to be extremely hit-and-miss when it comes to connecting to Twitter and getting tweets. About 5/6 of the time, I have to use Twitter's web interface instead, because Twitterrific is complaining about various server errors and things about the server complaining that I sent a bad request when I quite clearly have not sent ANY requests in the last hour– I just turned on my Mac; it's not possible.

Yes, it's a great Twitter app, and I'm perfectly fine with the hourly ads. But the connectivity issues themselves can on occasion make this app a real hassle to use.  
(Version 3.1)

GLOBETROTTERDK  I would like to see support for Proteus (back from the dead) and for TwitPic. I also think that Twitterific should add support for other services, like MoodBlast does.  
(Version 3.1)

STORMCHILD  Twitter seemed really fun and cool at first, and Twitterific was a brilliant free program that made it that much better. And then they decided to start charging for it...which is fair enough, of course, as they spend time developing it, but $15 is simply a rip off for this very basic program. I would have gladly paid $5 or maybe even $7 for this, but $15 is just over the top for one little window that can't even remember its contents between launches and makes me keep marking the same messages read everytime I start it up. And to me, there's no point in even using Twitter if I have to keep going to a webpage to check it every time. Net result: I simply stopped using Twitter.

I think it could have really taken off if this great client remained free and was cross platform, but I find the ads irritating, was annoyed that I had to keep marking the same messages read everytime, and found it surprisingly slow to start up for such a simple little app, adding that much more of a delay between when I log in to my computer, and when I can start actually doing anything (several other programs also launch at login, and Twitterific's surprisingly slow startup time added a not-insignificant extra delay to the process).

At some point this client stopped being about bringing something new and cool to everyone, and the focus was shifted to making money rather than providing a quality product. That's when it started to go downhill. Granted, the actual Twitter service itself has not become commercial, but like I said, to me it's useless if I have to keep checking a webpage; it really needs a decent client, and sadly, Twitterific stopped being decent right around the same time it started costing way too much money.

Quite frankly it's not that much of a disappointment anyway; over the year or so that I used Twitter, it slowly morphed from timely quotes and tidbits and links to cool things, to a boring play-by-play of the most mundane aspects of people's lives (e.g. "Just got out of bed. Time for coffee." or "Dropping the kids off at school." ... good lord, who cares?!). I think we lost the point of this somewhere. But this is just one person's experience.  
(Version 3.0.1)

SJK  Error with 2.1:

2007-06-07 09:48:55 -1000: There was an error retrieving the XML data from Twitter. The error message is "can’t find host".

Deleting preferences didn't help. 2.0 works fine.  
(Version 2.1)

CLEVERSIMON  A small feature request: For those who use other means of keeping an eye on their friends' Twitters, an option to show only the text field?  
(Version 2.0b4)

HENRIKTEKNIK  Looks great! And works great as well.

Save for one little quirk. It seems it required you to be logged out from the Twitter.com website before posting a message with Twitterific. Would be nice if it worked independently of whether you're logged in or not on Twitter.com.

Anyway, it's a great little gadget!  
(Version 1.1)

JEFF LERCH  This is great. Now i just have to cross my fingers, and hope that more people start using the service.

Will there be a Windows version? I'm stuck using a pc most of the day.   
(Version 1.0)