QUOTE(Olipro @ Apr 27 2005, 12:17 PM)
perhaps there is already a live compatible exploit out there, but I doubt we'll ever be graced with its existence, the old point of "too many cooks" (or too many people spoiling a good thing)
Your absolutely correct on that one. Very few of the greatest exploits go public.
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I always wondered what would happen if a portion of code were to be injected into the XBE of a game that would rewrite the BIOS in mem back to retail, and then continued executing,
Well, I wondered the same thing almost a year ago. In fact, I even got around to creating an application that was basically... like xbedump. The main difference being it would inject the patch back code on the fly into some padding within the XBE. Once there, the entry point of the xbe was pointed at this bit of code. That way when you executed the xbe it would return everything in memory to retail, and jump back to the original entry point of the game. This was never released because of obvious reasons.
Of course, I would never divulge this much information if the flaw unfortunately wasn't fixed.

You can thank MS's dash update right about the time of Halo 2 for that one.
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or a BIOS that could intercept the check implemented by XBL
No Comment on that one..