For prosperity:

Right now its Xperia Play only, Mojang have said it'll be available on other devices in a month or two.

Some people have already thrown the .apk on other devices, and gotten in game, however it's unplayable without the physical inputs on the Xperia Play. (http://imgur.com/a/bknX7)

They've committed to further updates following a similar model to the desktop version. The current version is actually 0.1.