BEV is the world's first tweet-activated vending and sampling machine, and is a great example of social media manifesting in the ‘real’ world.
With friendly banter and Twitter info on her front display, BEV encourages passers-by to tweet her for a drink. At the same time, she connects to the Twitter Streaming API and listens for tweets using her hashtag. When she detects one from a user nearby, an ice tea is dispensed along with a friendly Twitter message!
The campaign has been exceptionally successful and has been picked up by BBC News, Forbes, Bangkok Post and many more. It has won an award for Best Use of Mobile Social Media and is nominated for several others.
BBC: Vending machine offers tea for tweets
Forbes: Twitter-Activated Vending Machine Launched In South Africa
Bangkok Post: Vending machine trades tea for tweets in Twitter first
YouTube video: BEV - The Incredible Sampling Robot