Hello,
i myself have a nexus 9 tablet (wifi) and would like to have ubuntu touch on it.
I saw on the UbuntuAir QA, that mario has a booting image already, but the link on the device page did not work to flash it on my device.
also i would like to help/contribute as good as i can. I dont have big poring experience, but iam a developer myself, i fiddled around with cyanogenmod and i think could help with some stuff.
greetings