Does anyone know of a library -- open source or otherwise -- that I can use to create a pie (radial) menu for an iOS application?
It seems like someone should have thought of this by now, and I'd hate to roll my own if I don't have to.
One I found a while ago.
http://www.tapsandswipes.com/frameworks/touchpie/
https://github.com/tapsandswipes/iphone-pie-menu
Hasn't had an update since 2009, but when I looked at it back then it seamed sane and could be a good starting point for you at least.
chris.