Loving this thing more and more! As was said, all google apps are pretty rock solid.
I've installed and kept:
Angry Birds Space
ES File Explorer
Moon+ Reader (best e-reader app imo)
Wifi File Explorer
Opera Mobile (diggin it better than everything else)
BobClockD3 (my fav clock so far)
I use BobClockD3 with Widgetlocker to have the clock widget on the lockscreen. I'm real happy with Trebuchet launcher so far, so I haven't changed it.