The idea has crossed our mind, but this is not something we can do in the short-term. I am planning to buy an Android phone soon, so the possibility is there...
Yes, we got the SDK from Fanatec directly. We already had connections with them before, so I'm not sure if everyone can just get the SDK. It will go public soon however.
This feature would be only supported in that game, if it's possible at all, because I never heard of it before. Therefore I can't promise if it's worth it right now.