Perused a Android app builder put out by google.. turned over to MIT, available free to anyone with a google ID.. Well.. I love my google Nexus 7, am using the android BeerR program on it at times thou I am not that familiar with it yet. I have a RS232/wireless interface on my Megasquirt EFI I am sticking together for my old truck..Shadowdash it uses the same google tablet as a heads up display/monitor. That wireless adapter could convert a cheap controller.
I bought the ebay version with the 600 page manual. THE app writer is "free".. but you must print the manual out. This is in "my rusty C+" (or python) programming language.
Problem, perhaps the Android app builder will do communication, perhaps not. It says it can bluetooth also.. so..
Advantage, I could tote the tablet with me, view the surveillance cameras here, watch the kettle cook my beer, monitor it, and go on multi-tasking.
Edit, this android app builder is a icon based software, kinda set up like Visual basic, you pull the icon-devices and located them onto the screen where you want them, label the buttons, then write the logic to use them. I am about a hour into it and do not see any difficulties so far. (so far said the blind man)
Tunnel Hill Ga. I'm a Old biker/construction worker, wore out, tired, relaxing with a homebrew and loving it. Ain't nothing like watching the sun come up over Fort Mountain.