The iPod bartender has a working demo on their site. So you can show it off to friends... It's also got a BoozeMix, which is like shuffle for your recipes. You pick your drinks based on a category, like Flaming or Eggnogs. I couldn't find plain ol' Flaming Eggnogs though.
Apple nods to the drinking set with Podtender on their site. Although the pic of a 3G iPod at this point is a little comical. It boasts over 900 recipes, and can show each of them individually. They are pretty much sorted by name, which I think makes it more usable. You pay for the additional recipes though, as Podtender costs $10.
Why do this on an iPod? Because nobody wants one of these, do they?