Or a mistake in case design that they spent too much money on not to release. Their only hope being attaching it to some brand or IP that would give the abomination a chance in hell at selling. Looking over their release schedule the execs saw only one logical choice. Hence, the "Halo 3" edition 360, which stands completely Halo3less, was born from a project gone horribly awry.
Ok, now I wasn't talking about the paint-scheme, and I think that was clear.
I'm talking about the chips. Both the current Elite revision and the upcoming Falcon revision would support the Halo edition as a foundation; I'm curious as to which it might be.