Here's what's on mine:
gmail, google voice, ubertwitter, google search, google maps (which is great, BTW, if you have Verizon and don't want to pay extra for GPS), beyond411 (sort of like a yellow pages based on your current GPS location), Opera mini, facebook, vlingo, Pandora, crackberry, a local weather/radar and blackberry app world which is a marketing ploy but you can download most of the basics there.
Oh and I do have pacman and Lingo in additional to some card games.
