According to the bartender, this is the next beer slated to go on tap as part of the tavern's commitment to always having at least one vintage beer on tap. Right now they have on the 2009 Stone imperial stout. The bartender mentioned that they've been around long enough now that they've been able to save a number of limited release kegs, that they hope to be able to offer on a regular basis. During the X-mas holidays it was the 2009 Jolly Roger, and now it's the 2009 Stone. Once that's gone it will be the Black Butter XX. I'm not entirely sure when the XX will be tapped, though the bartender seemed to think it would likely occur sometime next week. Apparently (according to what I was told), they also have a number of kegs of vintage abyss that they plan to put on tap at some point as well. For anyone who might be interested, the 2009 Stone RIS is drinking really, really well right now. Price tag is an incredibly exhorbitant $5 for an 8 ounce glass. As I mentioned to the bartender, I was fortunate enough to try the 2009 a year or so back in Baltimore, but it was a bit more expensive than $5 for an 8 ounce glass.