I only have a few things that I'd like to see in an iteration as close to release as a n900 series tablet, and I'll admit at the onset here that some of them can (and should) be addressed by OS/UI changes. I'd like -A screen size increase without, that is WITHOUT, a device size increase. If I look at the numbers for the n810, we could have a 5.78inch (146.9mm) screen if the whole front face was covered by the screen. Also, the surface of the screen to flush (heightwise) with the edges of the tablet, because maybe it's just my fingers, but I feel like sometimes using scroll bars and anything else at the edge of the screen gets to be a pain in the *** just becuase the edge of the tablet is keeping me from actually making good contact with screen.
Have the keyboard on the 910, rather than composed of individual buttons, be composed of an eINK (eink.com) touchscreen (with haptics) and therefore be reconfigurable, by user choice, or automatically depending on the app in the foreground.