m.alibaba.com/products/ps2_contr … tooth.html
Okay, so maybe I’m slow, but why did I only just realise this combo could be a thing? How are you guys going to show off Hexy while waiting for / developing an app / autonomous code…?
Quite possibly. Not sure how those identify themselves. You can put the bluetooth module into a master mode, but it still communicates in a serial mode, whereas those are probably HID devices. It would be totally possible to make a serial-based controller with an arduino or something, though.
Ah… I should have known it’d be something like that. Doh! On the phone front I just remembered this:
play.google.com/store/apps/deta … m.cellbots
Pretty configurable, and open source. 
I’d have to look more at how it looks, but it certainly looks more reasonable than building one from scratch. Should theoretically work.