The press release info implies that the 750GB version uses 333GB/platter technology, but they don't come right out and say it. They seem to be referring mainly to the 1TB version. Assuming they are using the larger platters, do they simply block off the excess capacity? Does this mean the 750GB might actually be faster on average, assuming they disable the slowest blocks? I really want to put one of these in my 17" MBPRo, but I'd hate to find out later that the 750GB version is actually using "old tech" 250Gb platters.