Its a full install of Windows, not RT.
I'm keen on one, but I'm unsure about MS hardware in this sense. I'll have a look at it but lots of companies are about to launch hybrid notebook / tablets with Win 8 pro so I wouldn't focus on the MS version alone personally.
This thing looks good but 20" might be a bit big!
http://www.sony.com.au/product/svj20215cgedit: also seems to lack hdmi out, wtf sony?