Free apps I've downloaded and like:
eBay
LiveSportz
YPmobile - Yellowpages app for finding businesses and other info
Pandora
Sportacular
Freebird (similar to zippo) - for concerts or just fun
Labrynth LE - fun, but needs more free levels
Google Earth
21 Pro - blackjack
Loopt
urban spoon
Free websites that I like:
Seeqpod - good for finding and listening to music that isn't already on your iPhone
Paid apps that I like:
Solebon - card games (there's a free version, but not as many games)
Apps I downloaded and either did not like or rarely use:
earthscape
iGolf
iTV