While there's still no official word on which PC manufacturers will produce a Ubuntu touch netbook, the company released a sneak-peak video that shows it's new Netbook Edition Unity interface and gesture library in action.
Ubuntu has so far certified a list of 27 laptops and 7 netbooks that work with its full-fledged recent 10.10 release, but has certified none yet for its Unity interface with a touch screen. However, one of those stamped-for-approval netbooks is Dell's Latitude 2100, which includes a touchscreen. The rumor is that the Dell Latitude 2100 does pretty well with Unity installed
The demo sure looks like its being done on a Dell Latitude XT2 Tablet PC, perhaps another clue as to which vendor will be first to offer it. The XT2 is not one of the laptops that Ubuntu has certified for use with 10.10.