It took LaCie nearly a full year to ship the 2big USB 3.0 RAID drive -- a device that was announced in the fall of 2009 -- but now that it's here, it's being accompanied by a concept that actually far outshines the unit itself: USB 3.0 on a Mac. For whatever reason, Apple has refused to offer SuperSpeed USB on any of its machines, even a fully specced-out Mac Pro costing well north of $10,000. We've seen purported emails from Steve Jobs noting that USB 3.0 just isn't mainstream enough to sweat just yet,
