This sounds like a very unique proposition. One that I am definitely opened for. Buying someone a drink is always a nice gesture, but what if you could do it via Twitter?

Online networking app Tweet-A-Beer hopes to create that sort of thing and make paying for other Twitter users' drinks using their platform. Tweet-A-Beer uses Chirpify — an ecommerce platform that lets you buy, sell and donate money — to sync your Twitter account to your PayPal account. You can safely send beer money in $5 allotments.

Waggener Edstrom Worldwide and tenfour brewed the app for public consumption in six weeks. Must be a whole lot of fun over at SXSW now.