QuickTime (MP4) | iOS MP4
You might be aware of the high quality yet teeny tiny Sonoma Wireworks Guitar Jack audio IO devices for iOS/usb devices... well, it looks like there's something in the water out Sonoma way, as their latest offering has bulked up somewhat ;-]
Just as well too, as the new Guitar Jack Stage is designed for the rigours of...err... on-stage use, so it's gonna get a bit of foot-booting. Looks like it can handle it though.
It's a pedal controller and audio interface, compatible with Mac, Windows and iOS - device powered, but if you do plug it in, it'll charge your iPhone/iPad.
Should be appearing in a couple of months with a street price of $299.