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How about using your brain instead of putting some cult-like trust in The Steve? PC users stuck with USB covet Firewire (and eSATA) because USB is S-L-O-W in comparison. Do a direct comparison between the best implementation of USB 2.0 and Firewire 400 on an external hard drive or when transferring digital video files. You will quickly (or slowly as the case may be) see what I mean.
There's no good reason that I can see for Apple to go away from a technically superior standard to one that sucks (and is on the way to being replaced because of it) by comparison. If they wanted to ADD a few USB ports, that would be one thing. But ditching Firewire to save 3 to 5 bucks per machine in manufacturing costs strikes me as just dumb.