iPhone Social Networking Apps

• Bump - share stuff by bumping phones
• Facebook for iPhone - mobile version of facebook
• Foursquare - foursquare app on iphone
• Fring - connect with your mobile friends
• Loopt - locate and connect with friends live
• Tellmewhere - local recommendations and check-ins on iphone
• Tweetbot - iphone twitter client with personality
• Tweetie - twitter client for iphone
• Twitter on iPhone - twitter iphone app