We've gone from not knowing the release date of Taito's iOS rhythm game Groove Coaster to having the date -- and discovering that it's today. You can get Space Invaders Infinity Gene creator Reisuke Ishida's new game from the App Store right now, as a universal app, for 99 cents.

It'll go up to its normal price of $2.99 soon after launch, so if you have any kind of predilection toward rhythm games at all, you should jump on this without hesitation. That'll free up a couple of bucks that you can put toward the soundtrack, which has also been released on iTunes.