I like this app a lot. I was looking for something that would cover my Yahoo!, Gtalk, and AOL and this does it. Yes it does need some work, but I believe this is the first release. Having to hit the menu button for everything is a bit annoying and takes getting used too. Also, when hitting the "ESC" button, it closes out/logs off the app, while pressing the "End" button doesn't. Weird. You also have to adjust the Volume/Vibrate settings within the app instead of through profiles. I think it will get better.
I also downloaded the PC version, and while i haven't really used it yet, I'm sure it will be fine.