Facebook: for those rare few moments I need to make last minute changes to dinner plans with mates. Instead of a deluge of sms we create a facebook even for ourselves each week to discuss a location.
World of Warcraft Authenticator: Ensures my time killer is safe & secure from hackers 8-)
iXpenseIt: Budget tracker, helps me keep track of where my spending cash comes in & goes out. Also contains a handy business expense tracker, though I dont use that.
Shanghai: A Mah-jong app, excellent time killer. Crazy number of tile layouts to play with.
Flashlight: A free app that turns the screen pure white, perfect for trying to find things in the dark and the bloody torch batteries are dead.
Mover: Not used as much now, but makes for an easy way to transfer contact details & pictures between iPhone devices.
Oh, and the shortcut to load coffeesnobs.com.au for beanbay while were in the middle of dinner on Tuesdays!