I just loaded a few moths ago the Portableapps suite on my SD card and keep my documents and other files on the same card if I want those to be available from the card. If I need to use a full pc or laptop, I just use the IT as a card reader to open my files or any app that I may need if there it's nothing I want to use on that computer, open office, firefox, pidgin, etc. It works just fine. No need to waste space with a full x86 live distro.