Hi all - Hope it's ok to ask this here, but I'm trying to find out if the I-pod Shuffle which charges through USB connection to the PC, could also be charge when hooked up to another device, say the PTR1 via USB. I haven't got my Shuffle yet, but when it comes, I want to take it on a trip with me, so I won't be able to connect it to my PC for USB charging. So, would it do any harm to USB it to my PTR1 when it was charging? Would this work? Andy