[paulm64]

You still have to run the portable apps on a computer. The MP4 Player just acts like an external drive that you can carry from computer to computer. When you run portable apps on a computer from your mp4 player, all your data stays on the mp4 player. When you move to a different computer you take all your data with you. The advantage to this is that you can use someones computer but still have your programs and your settings, favorites, etc. without making any permanent changes, or leaving any of your data, on their computer.