Well what got me started on all this was that I wanted to Objective-C on the Amiga. I know it's possible but many of the useful libs are missing and even getting a version of GCC for the Amiga that can compile Objective C is tough.
I've managed to some degree but I just noticed that in order to build something like GNUstep (in order to get the appropriate Foundation frameworks which would make Objective-C useful on the Amiga) you need at least 2.9.5.3. Now we do have that version, but I can't help but then wish for more ObjC features that exist in the newer compilers such as blocks, automatic property synthesis, etc...
I have CubicIDE which has GCC 3.3 for the 68k Amiga, but I cannot find those "alpha" versions anywhere on the web anymore. The GCC-lite packages on Aminet are very good and easy to get started with but they're only 2.7.0.