OneNote app for iPhone & iPod Touch

The OneNote app is now available on the iTunes store, but only in the USA at the time of writing. It's a good start for avid OneNote users, but lacks search and the ability to file notes. Synching to SkyDrive works well, although the servers are overloaded and returning error 400 to many users. However, you can't limit synch to just wifi, so watch your mobile account!