The problem with Canonical is.. I've yet to see a glimmer of hope they made Bloatbuntu into a lightweight distribution of Linux. The Nexus 7 version was a steaming pile and good for nothing except to brag about how you have Ubuntu on your tablet. They have a phone coming out in October also.
Here is my thing.. Android is portable Linux already. Yes, it's Java based but the same principles and kernel are at hand. Why would I want a desktop version of Linux hamfisted into some convoluted tablet variant? You know who else tried turning a desktop OS into a phone and Tablet OS?? Et Hem... You see how well that turned out? Get me a version of Debian, Gentoo or Arch I can install on a phone or tablet and THEN you'll peak my interest.
And that phone in October is going to be a disaster..