highly unlikely, as there are no iOS drivers, and no real interface for plugging the USB into the iOS device....

been asked many times.... and there's never been an affirmative answer or official response....

just the usual "camera kit", "midi mobilizer", blah blah blah arguments....
line6 has been known to do clever things, so it won't hurt to ask...

but i wouldn't recommend getting your hopes up.

you can officially ask here: http://line6.com/company/contact/productfeedback/