I use a Samsung ATiV 11.6" Tabetbook (detachable keyboard), very similar to the Surface Pro or Surface 2 Pro. It supports multitouch and it also has a digitiser pen.
Touch works just fine, as you'd expect it to. Typing is easy and touch controls also work in desktop Windows 8, though some of the widgets are a tad small as they have not been designed for finger touch but work non the less.
Windows 8 Start (Metro) actually makes sense on these kinds of devices.
