You think google wave has good UI? My reasonably technology literate girlfriend couldn't figure out how to do anything, or the actions she did discover were too complicated or unintuitive (why does pressing enter not send a message?). She gave up after 5 minutes.
The front end technology is definitely cool, but the UI sucks.
it will probably be customizable not too long from now; i'd like a chance to test it out, see if it's good for organizing your thoughts; what does it look like on a mobile device?
There's a presentation about it's implementation using GWT here (I haven't watched it): http://code.google.com/events/io/2009/sessions/GoogleWavePow...