The Linux Tablet is the Future - and always will be
The year of the Linux tablet is, like the year of the Linux desktop, destined never to arrive. That doesn't mean we won't see Linux on a tablet, but you'll see Linux on a tablet the way you see it on the desktop - clinging to a tiny percentage of the market.
There is of course Android, which does use a Linux kernel somewhere under all that Java, but when Canonical or Red Hat talk about building Linux tablets, obviously Android is not what they have in mind.
For most, the dream of a Linux tablet means running a distro like Ubuntu, Mint or Fedora on some sort of tablet hardware.