apps and games it all depends on what you wanna do with your pb
let me share with you the apps/games I use and what they are for:
FREE:
Apps
Bluebox - Dropbox Sync
AirBrowser - Viewing files, making zip.
EVERNOTE
Box.net - Cloud Storage. Not as good as Dropbox IMO.
GAMES:
NFSU : a racing game by EA Sports
TOFU2 - an addictive game... (got it when It was free... i think its a.99 now)
Tetrix
PAID:
Battery Guru - stats on ur battery's behavior, power consumption, etc.
Files and Folders - sync with google docs, dropbox, box.net. *3 day trial available i think*
Note Taking : PiciNote, GroovyNotes and NoteSmartly are good options.
luko remote app: use ur pb as a mouse/keyboard for your pc. works via wifi.
BedBuzz or Cassandra for a night clock.
Photo Editor or TouchUp Pro for pic edition.
Games:
Madden NFL
SpiderMan Total Mayhem
Turbo Grannies
I like puzzle-like games so I use Pixelated Plus, uDigits, SandSlides. Grave Defense HD.
On games, you would have to tell me what type of games u like.
GameLoft has a good variety of games, so does Polarbit and EA. I recommend browsing these developers in app world to learn more about their apps.
There are some "angry birds" inspired games like Battle Frogging and Angry Apes.
Want input on the best paid and free apps that you like. 
