It needs to satisfy the following requirements:
1. Be liberal with file formats. I need it to support pdf, MS Office files, zip/rar/etc, and all the popular video/audio formats. Basically I want the comfort of carrying my files with me everywhere without having to take a laptop with me. It doesn't have to support everything natively, but should be at least extandable through third party apps.
2. Have a good, wide screen, preferably a touch screen. Like I said, I mainly want to view the files, not edit them, so it might as well be one big screen.
3. Full internet capabilities.

4. Well designed UI.
5. A good collection of apps would be great as well.