Haha, I never even thought of testing that. A clean fully optimised universal binary build of Audio Overload (i.e. two full sets of compiles), totalling 654 files, just built in eighteen seconds. I burst out laughing when I saw how fast it went. For purposes of comparison, the Dual 2.5 G5 it replaced took about ten minutes to do the same compile...!
But rather funnier, and keeping this on topic for the forum, was MAME. I just downloaded the source tree of MAME OSX 0.124 from the official site, and compiled a Universal Binary in three minutes, thirty-seven seconds. Crikey.