Rather than starting a new topic, I figured that I would just add onto this old one. 

Has anyone else used this on iphone/ipod/ipad?

I picked up an ipad2 last week and got the Peavey Amplink - works really well with both Amplitude and Ampkit. The first one I got was DOA but the second works great and has minimal hum. Volume isn't a problem either, which I was worried about after reading some reviews on TGP.