just search play for ubuntu installer, its a way to chroot and boot an xserver and then you vnc into it... kind of hack, sure, but there are also xservers and busybox, depends on your needs if these options will work for you. i haven't heard much about people using an arm build of ubuntu on droid devices, though, although it seems i remember something about it being worked on
For what this is being marketed for and for everyone of the top 6 uses I can think of... this has as good of specs or better.
I mean, what do you want NFC in an embedded form like this that would have similar uses in a tablet? For something being sold by Asus vs [some seemingly random person] and for $70 less, I think this has a lot more value that you give it credit for.