Skyld was working on this a while back, i think over a year or so. He said that the client was "done" but still had bug's being worked out. I'm not sure what happend to this project, all i can input is that Skyld was working on it for a while, and did get a client running on his android device.
I can't say that Graal also making an android app would be a good thing, but you are tapping a large population that does use android. (aswell as all the bootleg crap that uses androids software to put in there plastic frames.)