Drumroll please....here are my favorite iPhone apps for 2011!
Social Networking: Path
Location Based: Foursquare
Photo Sharing: Instagram
Streaming Movies: Netflix
Game: Words with Friends
Marketplace: Zaarly
Food: GrubHub
Messaging: Meebo
Travel: Kayak
Finance: Square
Note Keeping: Evernote
Transit: Uber
News: NYTimes
Other misc. that came and went...
Yobongo
HeyTell
Foodspotting
Hanging with Friends
Groupon
SnapTell
Kik
Sonar