What I found funny is that the chr key was grossly underutilized on the N810 (e.g. why menu when you could do chr+e for é as such). We can only guess what kdb input is possible with the N900 - the basics are clear but (hopefully) there are a few tricks up Nokias sleeve, maybe through some funky ctrl-shift-fn combo, or dynamic layouts (wouldn't it bee cool for layouts to change when you switch from terminal to composing mail ? or swap kbdmaps with fn-enter or sorts ?). So, it's nut just in the number of keys, but with less keys you have to be smarter on the usability side. We'll see how that plays out.