Is there a tablet version of Ubuntu? Will it run on the iPad or motion LE1600?
There was speculation on the 18th of February 2013 about HTC releasing a tablet that runs the Ubuntu OS. Information about this can be found in the following sites:
The Ubuntu site on the same day offered a countdown that would end on February 19th 2013. The countdown when finished showed the following video: http://www.youtube.com/watch?v=h384z7Ph0gU
Apart from the information provided above, you can also read the following link for more information regarding Tablets: http://www.ubuntu.com/devices/tablet
One thing we can see from the information here is the hardware requirements for Tablets:
Regarding the installation of Ubuntu (Or any other Distro for that matter), please see my answer here: How can I install Ubuntu on an iPad?
I also recommend reading this question: What is 'Ubuntu for phones' and how can I get it?
UPDATE Feb 21 2013 - The Ubuntu Phone, Tablet Developer Preview has been released
You can also visit the official Touch site