Well! Updated/upgraded to Xcode 2.1, skipped Development altogether and compiled Deployment build directly, and... Bingo! I guess something in 2.0 got confused, or I'd played with something I shouldn't have in the past.

No bonus though, as the gagame.bundle errored to death (ID_INLINE seems to be a popular culprit). Builds for the application(s) seemed to produce more warnings than I'm comfortable with, but they were non-critical and generally of the normally harmless variety.

It still bloated and I wound up having to manually strip the executable even after turing off (or so I thought) the debug info generation, but that led to that svelte, lean-and-mean, well-running application we've known and come to love. A cursory check showed a miniscule performance improvement over the original as well. Good Stuff, IMHO.

Now, to start digging around in it!