According to the LK8000 forum they are working on a Linux version, but not for the moment an Android version. Naviter have said that they are working on an Android version of SYM but without any indication of their timetable. I imagine that they have been concentrating instead on Oudie 3 and Oudie IGC and are more interested in selling hardware than software which has to compete with the free rivals. The various Oudie models are a superb solution at the moment - the bright 5 inch screen they share with the Avier/V2/GliderGuider family makes such a difference and I am not aware of any new Android device which has an equally good screen. IMO if you need to buy now these are the best devices. In another year who knows?

Butterfly and Winpilot are both opting for iOS. I think the iPhone is too small and the iPad mini too big for most glider cockpits - and I don't think they are as bright as the Oudie's et al.

The dedicated devices (LX9000 and Zeus) mostly seem to run on Linux. What about the Clearnav?