I like the idea of being able to use memory cards that I already have. All SD cards are exactly alike, the only difference from brand to brand is the label on the front (if you don't believe me, buy a cheap off-brand and cut it open, it will contain SanDisk chips). There will likely be some kind of DRM (digital rights management) for the VC files to prevent people from sharing them over the internet, but I'm not sure how this will work. I hope they don't use a proprietary format. PS, PSP does not use SD cards, they use similar-looking, but completely different MemoryStick Duo's.