This is a top purchase item for me (as if you didn't know ).

That it can do calls is brilliant as with my BT headset, this can be my mobile and IT in one (at a comfortable size). I can load it with debian (even VNC for needed GUI apps), meaning that it will replace my notebook when away from my desk (with my trusty $30 BT Keyboard, no less). The pen peripheral means that I can jot notes as I typically do on paper as well as draw diagrams. Android gives me access to a growing repository of free and paid apps and games, and promised future support.

I could go on, and on and on. Basically it's my N810 with a much faster speed, a much bigger screen, many, many more apps, more storage, 3G data and calling capability, and a proper digitizer.

This seems to be the first device that I genuinely don't have to compromise for.