Look at the positive, this will give the play testers even more time to find and correct even more glitches and maybe even implement an idea or two they may have thought they didn't have time for.

A delay while so fucking annoying can be a great thing as far as game quality goes. It may be selfish of me, but I have to agree with MS's decision and feel that if I can't get GTAIV in October, then no one should be able to.