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)