Are any android nodes in production for use on mobile devices? Running a full node on android is my goal
No you can't. The only implementation of the protocol so far is IRI and it needs java and quite a bit of RAM to run. You can't even run it reliably on a Raspberry Pi atm. It would also drain your battery to the ground on no time and require constant connectivity with the network.
First of all, I do not believe you can currently, software wise.
Second of all, this would be a bad idea. Why? You need to ensure that your node is synced and online as much as possible in order to be an ideal neighbor. Your phone will be bottlenecked by data, unless you have an unlimited data plan, as well as times where it runs out of battery and dies, which will hurt your reputation as a node.