Personally, seeing as how it's an Nseries, and thus multimedia-focused (at least by marketing), I'm most interested in seeing something that allows me to sync media across the tablet. I'm talking playlists, that sort of thing, not just USB-drag-and-drop.

I also second the bookmark syncing. I personally find it completely pathetic that this thing is an INTERNET TABLET that's supposed to 'extend' my browsing experience, but I have no way to send bookmarks from my desktop to my tablet, other than setting up a 2nd tablet-only gtalk account and IMing myself.

Of interest, I've noticed that when I plug my N810 in via USB, my Nokia PC Suite pops up and 'alerts' me that the N810 has been connect in an incompatible mode. I personally find this completely fascinating, as if they merely disabled some ability that PC Suite *could* offer.