I tried to hold off for a light art slate that has minimum requirement for my needs (Core i5/i7, 8GB of RAM, Wacom digitizer, better than SXGA res IPS LCD bigger than 11", swappable battery or min 8 hour of battery) and it looks like the closest one, the Sony VAIO Duo 11, doesn't use Wacom.
So I just bit the bullet on a really nice newegg Fujitsu T902 deal:
$400 less than @ Fujitsu website.
You really can't beat a convertible for versatility. You have full voltage Core i5, 16GB max RAM, dual battery slots for hot swap action, And I have 13.3" surface area to draw on. A real desktop replacement for me. And doesn't weight that much (4.4 lbs). And love the fact that Fujitsu's Wacom pens have 2 buttons. 2 button pen that fits in the silo? Yes please.
Ordered it with 180GB Intel Cherryville SSD and 16GB of DDR3 1600 (CAS 10). Should be a speed demon with all my art apps.
I think I like my approach of having a 4.4 lbs 13.3" desktop replacement that can go along with me when I need it, along with a 1.3 lbs 10.1" Android tablet that I can carry about all the time, both running a Wacom pen. I'm set.