So, can the iPhone SDK track 10 fingers at once? Yep. It sure can. I wrote a simple program to just record the count of the touches set provided to the four UIResponder touch-related methods, and it had no problem identifying and tracking 10 separate fingers at the same time.
For as long as I’ve known that the trackpads on the unibody MacBooks can track 11 touches, I’ve wondered, “Why 11?”
In the comments, Jeff notes that the iPad also supports up to 11 touches.
$1 to the first person to release an app that puts this information to good use.
But no penises. That’s too obvious.