- Better resolution (1600x1200) and contrast. Monochrome is fine, if it means better viewability.
- Faster. Not just "less geological", but actually fast. iPad fast.
- Better reading software. Support good typography (both typesetting and screen rendering).
- Good touch interface.
- At least an attempt at ergonomic chassis design.
- Decent web browser and WiFi
Plenty of other stuff would be nice, but these are where I hope for improvements.