It appears to have some very nice/innovative UI design, and some interesting new features like the long-term storage and sharing of IM “away messages” into a sort of mini-blog. Hmm…
Gush also looks to be designed with an eye towards small-team collaboration… always intruiguing.
Also, it builds on the solid open-source Jabber IM protocol, and is if nothing else a demonstration of the kind of innovation that can happen on top of open, documented standards.
And it’s offered under a Creative Commons license!
These guys are compliant with all the right buzzwords! I can’t wait to try the app!