Ok, so 1.2 kg isn’t going to make it an iPad competitor but I don’t want an iPad. So far this is the closest I have seen to my “My Perfect Computer”. You’re not going to do full on design on the road but an i7, decent SSD and the versatile configuration (with digital ink) means it sure looks like a nice mobile design/presentation device.
ASUS TAICHI - http://taichi.asus.com
The Incredible Fusion of Notebook and Tablet
This video shows the potential with design media. I’m the dude with the tube…
UPDATE 2013-01-13: Or, if you don’t need two screens perhaps consider their Transformer book but it appears (by no mention) that ASUS have not included the pressure sensitive pen input seen on the Taichi. That’s a major omission for a full Windows tablet experience