The Guitar Hero
machine is set to spit out Guitar Hero World Tour Mobile: Backstage Pass
for major carriers, including the Android Market and BlackBerry App World. The latest no-peripheral (unless you count the phone) entry in the music series was developed by Hands-On Mobile, which is no stranger to miniaturized music games
If you're wondering how much money there is to be made from a Guitar Hero
title without any peripherals, just look to Guitar Hero III Mobile.
Maybe you even bought it