This is a MonoTouch port of https://github.com/kenshin03/RouletteWheelCollectionViewDemo
The license here is MS-PL - compitable with https://github.com/kenshin03/RouletteWheelCollectionViewDemo/blob/master/LICENSE
A screenshot of this at work is:
The images used as samples are some speakers from Evolve 2013 - http://xamarin.com/evolve