(First, for the record, no, I do not have a life)
I was reading through the man page on gcc in 10.4.4 and I came across this:
Enable garbage collection (GC) for Objective-C objects. The
resulting binary can only be used on Mac OS X 10.5 (Leopard) and
later systems, due to additional functionality needed in the (NeXT)
This implies to me that we might not ever have to see posts about Obj-C memory handling in the future!