Dennis,

I don't believe this device has been released for sale yet and is still a prototype.

Air Turn

There is a USB connector kit from Apple gives some USB functionality to the iPad, but not what we'd really need it to do (AFAIK)

USB Camera Connector Kit

Last year I received as a gift a USB mic from /Snowball USB Mic I really didn't have a lot of use for it, but recently since purchasing the DAW Multitrack App I've been able to use it to record to the iPad.

[This message has been edited by Stephenm52 (edited 11-10-2010).]