it's a niche app but it is also a very crowded niche. I've seen dozens and dozens of cocktail recipe apps. I pay pretty close attention to this market b/c i'm in it but have gone at it from an entirely different angle (if interested, see http://itunes.apple.com/us/app/bostonflip/id451503483 which i believe passes the 'fugly' test?). we're only servicing boston metro area at the moment.
