Just got an iPhone and it's the most incredible electronic device I've ever seen. The interface and email and so forth are fantastic, but what really distinguishes the iPhone are the incredible applications people have developed, everything from GPS-based subway directions to an application that identifies music on the radio to a bird-watching app where you can hear the bird's song (I'm not a bird-watcher, but one of my partners is and showed it to me).

Which is the point of this thread. The applications available for the iPhone are so amazingly cool and productive, I'm wondering, has anyone found any great woodworking apps? I've found just a couple, one for calculating board feet quickly and another for estimating, but are there others?

I can't think of what a great woodworking app would do or look like, but that's the point with the iPhone apps - I am constantly amazed at the great ideas other people come up with.