I've seen a lot of Linux tablets, and so far they've always been a touchscreen added to an early 2000's desktop-style interface: small touch targets, gestures don't work in obvious places etc.
That said, it's been a while so I could be out of date: is the Linux desktop UI and apps used by the Ubuntu tablet touch focused?
Edit: Linux as in the common usage of 'Linux kernel, glibc, X', not Android. Which you knew.