Professional iPhone applications development.
Experience with most SDK frameworks: Cocoa touch, Core graphics, Core audio, Audio unit, OpenGL ES, Core data, sqlite, Push notifications, In-app purchase.
List of applications developed by me or with my assistance:
Audio-MIDI sequencer
Wind OS (available on app store)
Mayan jumble (available on app store)
ClimateCounts (available on app store)
My supplements (available on app store)
DSP application for realtime voice modification
Lighter simulation with RSS reader
Pretty poo (available on app store)
Arcanoid like game