glitch77 has posted about how he put the Moments entire file-system on his SD Card and is running his moment off of it. See the post here. He mentions that its not really fast enough for normal use right now and there isn't a reason for a normal user to do this. Right now this is only really good for dev. Its interesting none the less. If you haven't heard, the Barnes and Noble Nook has its file-system on an SD Card. It took the Nook hackers just a week to get root on it.