At long last, I finally beat MAVLink into Java submission. I wasn't able to find any MAVLink bindings for Java (needed by android), so I ended up using JNI and wrote a MAVLink wrapper. It works nicely and makes using MAVLink very easy. Its available for download here. I've included both the "common" and the "pixhawk" messages.
As you see above, I've added a HUD mode.
I've uploaded the new copy of the GCS for easy download or through the Android Market (search copter-gcs). Of course the source is available through SVN
I am focused on Copters, as that is what I fly, but with MAVLink support, the copter-gcs is now also useful for ArduPilotMega. I loaded the APM code on my quad (minus the props :-) ), and was able to see / tune track just fine with it. The only thing missing is that the PID tuning widgets I have are currently only setup for the copter. The next version I expect will have the APM pids added in. For now you can just use the Parameters view to set anything you like:
When you make a change, just hit the button next to is to save it.
That's about the news for now. I will be working on Mission Planning and some clean-up next.
If anyone has any problems, let me know. Same thing if there is a feature missing (no promises though).
So far USB host mode for tablets (connect XBee directly) and Wifi links have been requested, although i'm not sure when/if they will make it in.