Gary Regan (Joy of Mixology and Bartender's Best Friend) and Mardee Haidin Regan (Ardent Spritis) team up to bring you a iPhone app for serious mixers and shakers.
Flip 'N Drink is a $3.99 pay for play app that's worth the price of admission. Unlike other cocktail recipe applications this is unsponsored app is created by drinkers for drinkers. This grown up bartender's guide offers great photos, search engine, a corral for your favorite recipes and a suggestion box of "if you like this, drink this". They also offer a free or "lite" version.