Don't know if you guys have seen the T-Pain app for the iphone which is essentially auto tune on your phone with a few fun features (www.iamtpain.smule.com)
I emailed the company to see if they had any plans to release this on the Android device and this was their response:
"We have no current plans (at the moment, that is) to develop for any platform aside from Apple devices. We are keeping a close eye on Android though, the way Android is headed looks promising.
Hopefully they get on that soon so I have something else to waste time and money on.