The game is nearly finished and should be out Jan/Feb time. I've also put together a separate Beat Hazard Visualizer app that will be a free give away (to start with). That should be out a week or so before the main game.
The game will work with any track you have on your device, or you can play along to any of the built in internet radio stations.
You can also play with 1 stick or 2 stick mode. 1 stick is far far easier to play as you just have to move the ship and the game will aim and fire for you. However, you do score fewer points. For the pros there is the 2 stick mode which is more challenging but you can really rack up the points!
It's universal so you only need to buy it once to play on any device. It's also 17mb so you can download it direct to your phone via 3G if you wish.
I'm really excited about the release of the game. I can wait to see what players think.
Check out the iOS page for more details, screen shots and videos of me playing both iPhone & iPad versions.