Can your beer glass do this?

Welcome to the next phase in on-premises beer marketing. Either that, or it’s just a cool thing to look at when you’re hoisting a few.

Regardless, this glass, developed by ad agency BBDO in New York, is the most social beer glass we’ve seen. Activate that QR code and the glass checks you in to Foursquare, tweets about your pint and/or updates your Facebook status.

And in a nice branding twist, you have to use Guinness — or at least another very dark beer. If your beer is filled with an ordinary pilsner like Budweiser, you won’t be able to read the code.