Smartphone Ultrasound Attachment.
iOS App Designers Guide
Wedding Booth for iPad - The Inexpensive DIY Wedding Photo Booth $9.99 - still would have to build backdrop & props, but could likely do that for total of fifty bucks, though not too pleased with app interface.
App interface design
Speak, Piggy! --> http://itunes.apple.com/us/app/speak-piggy/id377053526?mt=8#
Pizza app icon #ui #ios #icon
The Pancake Movement Mobile #Mobile
Tonic Health - creates a game-like ipad interface for patients to communicate with doctors