On a scale of 1-10, 10 being utterly essential.
1. Desktop background choices. I'd prefer a simple black field with white characters. IMO the background art is ugly. I'm sure others would like to customize. 9
2. Screen dimming. Out of the box there are 2 brightness settings. The lowest is still way brighter than I'd like. I cover it up and therefore defeat the whole purpose. Being able to tune this would make the unit a lot more desirable. 10
3. Audio output (hardware). Everyone's favorite. A female miniplug would be fine. A miniplug AV output would be even better. 8 (you can always use the headphone jack, but it's sloppy)
4. Compatibility with 3rd party AV apps (like tunewiki) via the music button. 7 (you can always open the apps, you just don't get the clock)
5. Anyone else?