I've released a free beer recipe formulation app for the iPad.
I've been homebrewing since the late 90s and I've won multiple BOS awards around the country, AHA Mead Maker of the Year, and the Midwest Homebrewer of the Year.
I've taken just the elements I need as a brewer to make a simple, easy to use app that focuses only on the elements you need to put together a recipe.
Check it out here: http://itunes.com/apps/brewbotlite
If you have any feedback you can email me: sfletty@gmail.com