Not sure if anyone else has already seen this
http://www.weber.com/weber/on-the-grill
I downloaded it last night and have to say it's the best BBQ i've seen so far. It shows you different ways to setup your kettle and they also talk about using a WSM it's got estimated cooking times and some different recipies to try. Also the shopping basket part of the app' is really good.
Not had much of a chance to play with it so will let you know more once i've had a good look but so far i would recomend it.