I can barely wait until he releases a GCC 4.6.x build; the newest release of GCC has an entirely rewritten Objective-C runtime library that brings it up to Apple's specs, including Obj-C 2.0 support, garbage collection and synchronization. After having used TDM-GCC for so long though, other builds seem lackluster by comparison. I have to admit that I've been spoiled by the full 64 and 32 bit compilation support, as well as the inclusion of (so far) fully functional OpenMP 3.0 and pthreads.