A mobile Twitter vending machine powered by Android earned almost 1 Twitter follower per minute for a 6 hour run at #SXSW. Dispensing a branded keepsake from a hacked vending machine that is powered by an Android OS device is a pretty cool way to gain Twitter followers.

The way it works is if you follow a twitter handle, you are sent a direct message(DM) which contains a code that you may use as social media “currency” to make your purchase on the vending machine’s keypad.