I've been eyeing a few Christmas movies that I'd love to own to watch every year, but I don't want the physical disks my kids could scratch. I want something I can play on my Sony Google TV, and I'd like to be able to take a mobile copy with me (I'm hoping to buy an iPod Touch soon). It seems that VUDU can't be taken anywhere on any device. Amazon won't go on an iPod Touch (but works on GTV). ITunes works for the iPod but not GTV. Is there another place/format I should be looking at that would work for both?