I'll bite.
USA today is probably one of my favorite "news apps", just to stay on top of the most popular stories going on. If you're a GMail fan and you want the most intuitive GMail usability go for AppGmail, give you a web browser without any bars, just useful GMail tools. The Weather Channel app is great for staying up to date on the radar.
The Google app is pretty fantastic, it provides a wide variety of Google stuff, like voice search, access to docs, calendar, talk, and google reader. For RSS feeds, I use NetNewsWire.
Now, the most important part.....games. Super Monkey Ball, can be fun and has great graphics. I don't regret the purchase.....but I wouldn't be sad to lose it. Waterslide(free) is somewhat fun, although I just recently got it. Zippo(free) is neat for all of your pals to see. Paper Toss(free) is a DAMN good game. Flight Control(0.99) is the best $1 you'll spend. Phase 10, my wife loves this game.