What has my interest is this same battery, same charger concept. That may be more important to my demographic when the next tablet device drops.
I may be a bit older than some of you fellas and there is a few things I know for certain in my life...

I know I'm never going to weigh 185 lbs. again, I know I will pro'ly never be an astronaut, and I know my eyes will never again be as sharp that a I could use a 2 or 3 inch phone screen to manage the data the future will require from me.

I have accepted that I will always carry two devices. I figure I was born about 10 years to soon for a true convergence device to be of practical use to me.

One thing that Nokia has been successfully with in the past two years has been getting me used to this notion of also carrying/packing/toting another smaller device instead of a laptop or access to a secure desktop...

My N800 fills that niche and a small BT phone fills in the other. If my next phone and device shared the same battery and charger, this older dude would be rockin'