The Mac domain management field has been sorely lacking for quite some time. RAGE software, with the exception of one app, specializes in website management/creation software, so it only makes sense that they step into the domain management field.
Which this is a version 1.0 app, complete with a few bugs, it has *great* potential. While most of the bugs are more UI issues, there is one bug that zapped me pretty good - if one enters a domain that has not been setup yet, the spinning beachball appears for a minute or so, completely freezing the program [the first times this happened, i force-quited the app, but later i became more patient and realized it was timing out after a while]. I've sent a bug report to RAGE, and they are looking into it, but that is the only reason I marked the stability down to a 3 - hand entering about 20 domains that had the spinning beachball got me a wee-bit miffed. :)
But the rest of the app is 95% polished and very easy to use. It lets you view your domains in list view, list with a fixed small thumbnail of the site, and a thumbnail only view that reminds me a bit of Delicious Library or Coda.
When you select a domain, the lower pane shows you google and other ranking info for the domain name only. This is a bit important - if you have www.example.com setup and don't redirect example.com to it, then if you enter the domain name without the 'www' prefix, the google ranking and alexia ranking, etc, could be far off. In general it is good practice to setup your webserver to use a 301 redirect so that example.com maps to www.example.com [or vice versa, whichever you prefer].
The only other problem I have had with the app [which just started today and not yet reported] is that twice it started using a massive amount of CPU while running in the background.
One nice thing about the trial, by the way, is that, while it limits you to displaying just 3 domains, you can remove the 3 and put in another 3. This is helpful in that you can see what kinds of results domains you may not own bring back [try displaying google.com or msn.com or yahoo.com to see a lot of info in the lower pane!].
All in all, a very, very well done app, and one that is clearly leading the domain management niche for Macs. $40 may seem steep, but this is really the only app in town that does a good job. RAGE could charge nearly anything - those who maintain and monitor a lot of apps will still find it a bargain [it is cheaper than using some online monitoring services].
I look forward to a 1.1 release and further development. This v1.0 is a solid start to a product I look forward to using for a long time.
Oh, two things I forgot - while Domainer may keep your data in a special format, RAGE is nice enough to give users an Export menu option so that one can export to CVS. That is a *great* feature and shows open-mindedness in development. The other thing that is great is the iCal syncing. Domain expiring soon? Thanks to iCal, you'll be on top of it, as Domainer puts the expiry dates into iCal to make sure you don't forget to renew your domain[s]. Very cool!