Cloudo is a free internet application, which allows you to take everything from your computer with your, wherever you go, without carrying physically anything with you. It's practically a virtual PC. You access it via a username and a password, and you can upload, download and view different files on it.
It has basically a few applications and games available, but its secret consists into a XML editor. If you known XML, you can make anything using this markup language. Additionally, Cloudo offers an word editor, text editor, mail client, calendar, and even a contact manger. So, you can use it even you don't know XML at all. You can upload any file from your PC, and view them or download them anywhere on the earth. It's really simple. And free.
Try it: http://cloudo.com/