If we were to get a good x86 tablet for example capable of running Trisquel,
we'd need to do some engineering, I think, to make the experience
comfortable.
Consider, for example, the bottoms at the top of windows to close and
minimize windows - those are small buttons and not touch-friendly.
Gnome-Shell has one big close button which is at least the size we'd need.
Also, a lot of the apps in our repositories probably wouldn't be very fun on
a tablet - Virtualbox? GIMP with its multiple windows? It would work quite
nicely with a stylus, but most tablets ship just expecting fingers.
You also need, in absence of a physical keyboard, the kind of thing
smartphone systems do, which is intelligently open the keyboard when needed.
There are some great things happening in Enlightenment (e17) with tablet user
interfaces, there are a few called "mobile" or something to that effect, but
I found e17 to be inadequate out of the box and needing configuration to have
that Trisquel-esque friendliness and configuring it is not an easy task. We'd
want to, if we were to release a tablet version, do all of that configuration
ahead of time and so the user simply installs and its user-friendly and
great.
Unity, as controversial as it is, is at least part of a step in the right
direction - with the big launcher buttons and the idea of scopes.