A premature alpha version is released on google play.
That's how you do it if you don't have devices to test on...
One cool thing is that if you have a wiimote (everyone's got a Wii, which means you've got one) you can use that one to play (needs the wiicontroller app by c.c.p creations installed). With the wiimote you can play two players simultaneously as well. How cool is that? Yep, really cool.