I'm interested in doing some home development on my Mac, and to learn the ARM platform while I'm at it. I'm looking for a platform that has a GCC toolchain that will work on the Mac (or at least can be tweaked to work). My initial application will be a touchscreen IR remote, but I'll eventually want to add other communication interfaces.
I've been looking really hard at the Beagleboard, but it seems like overkill for what I want to do (I'm not terribly interested in setting up an SBC or running Linux, although it might be interesting to toy with Android, I'm more interested in programming in C) and it seems like Mac development is a little kludge-y. Although there are some nice peripheral boards out there to add touchscreens for the Beagleboard, it gets expensive pretty fast. On the other hand, the sheer amount of expandability is pretty awesome.