Found this on their support forums. No date which isn't ideal, but at least they're working on it!
Window Phone 8 / Feature Requests / Discussion Area - Untappd Support
There is currently an app called Mmm Beer that allows access to Untappd, but I'm holding off for their official app.
Window Phone 8 / Feature Requests / Discussion Area - Untappd Support
There is currently an app called Mmm Beer that allows access to Untappd, but I'm holding off for their official app.