Well, damn. I've had now 4 instances of my 17" MBP (2.33 C2D) either corrupting its own hard drive beyond bootability (requiring reformat) or destroying it altogether (requiring replacement). I've had three different hard drives from two different manufacturers have failures in the past 6 months I've owned this machine. It's got to be something on the logic board that's off, as this can't just be bad luck.
I was hoping for an update like this that would (a) apply to my machine, and (b) patch something on the logic board. Sigh...
I guess for now my MBP will still continue to eat hard drives, and I'll continue never being able to trust it. :/ I look forward to my next AppleCare call, where I'll be within protocol to receive a new machine.