Below, you'll find a collection of resources to help you get started. We will run the stock Ubuntu Desktop on the Nexus 7 while we focus on the core of Ubuntu. Note that this means that in 13.04 we will not be attempting to make a tablet specific experience. Ubuntu is getting back to basics and we'll use the 13.04 cycle to get Ubuntu Core leaner and meaner.

The tighter we can get the core, the better we will do on laptops and the cloud, too. 'So I think it’s time to look at the core of Ubuntu and review it through a mobile lens: let’s measure our core platform by mobile metrics, things like battery life, number of running processes, memory footprint, and polish the rough edges that we find when we do that. So Ubuntu 13.04 was last build from canonical for this tablet.

Canonical stopped development of Ubuntu desktop for Nexus 7 for the moment and there is no latest news about 13.10 build for Nexus 7 tablet.

It is kind of developer edition and should not be use for daily work, since it has problems in it. Basically Ubuntu desktop for Nexus 7 is just a Ubuntu core with some applications installed by default (Any application can be installed if it is available for armhf architecture via deb/PPA), in order to make sure Ubuntu can work great on tablet devices.

Install nexus on ubuntu