Well, useless for me. No FW. Not to mention I would like it in black. White macbooks are just... ugly.
And to all the people being all "I couldn't care less about FW": ok, but others do, you're not in a position to bag on everyone else just because you don't use it. So can it.
I have two agendas. One of them is that I have a portable soundcard that uses FW (most audio and video gear use FW — and don't give me mid-range camcorders, yeah they use USB, who cares), I'd like to use it with a small and cheap MB. Not that a cheap and small MBP is out of the question, I just hate the "new" design (although I'm warming up to it), and I like choice.
The other is simply that USB trash. That's the real problem. It has been trash since day one. Both from a theoretical and a practical view, it is simply sub-par engineering, and it would make sense for someone like Apple to help kill it (even though they helped create this monster).
The only thing USB works for (kind of), is keyboards and mice. For everything else, it's rubbish. And even with keyboards and mice, you have unnesessary extra CPU-usage because of the ****** controller.
Hopefully, we will see USB vanish, or get the background treatment (keyboards/mice) when Intel release the Light Peak tech. Although I haven't heard any specifics on the controller yet, I'm sure it will beat the el-cheapo USB controller.
If Apple have any loyalty left to people who actually cares about quality, they'll help kill off USB when Light Peak arrives. Hopefully the AV-industries will agree (I know for a fact that the engineers do), and we'll be rid of the putrid standard that is USB, at least for anything important, once and for all.