Well the whole deal about halo 3 being on the 360 and not the 1st xbox is not a big mistake. Halo 3 will be a system seller. The original halo was a system seller and the same will be true for the marriage between H3 and X360. I would buy the xbox 360 when halo 3 ships but i already forked out $200 for my reservation at EB games. The BIG mistake would be to release halo 3 for the xbox and the 360. Remember back in the day when the PS2 came out, it double shipped games for both PS and PS2. i think it didn't help them make anything. i think that buy releasing Halo 3 on the 360 will force avid fans of the Halo series to shell out the bucks for the system.