I would :
* put the 5-way and minimal hard buttons on the top, just like their own freaking N-series phones!

* Use dual microSD slots or 1 microSD+1 SD slot, You know, the same type their own freaking phones use! MiniSD is so wrong on so many levels. What, Nokia you expect your user base to be Treo 750 and 680 owners?! And the fact that I KNOW they are going to switch to microSD on N900 make me sick.

* Make the speakers louder, so you can actually use it on occations that need it, for example, on a train table, on a pinic table, on a beach etc.

* Make it $70 more than the n800. I don't know why they drop the price on the n800 so soon and I don't care, but the n810 shouldn't cost more than a 800 plus a GPS receiver.

* Keep the same cellphone battery but upgrade the capacity (is that what they are doing now?)

Otherwise I am indifferent to the n810's other hardware changes, I know they are gimmicks that use to draw in new buyers but, meh.