They're calling it the iPod of laptops - Apple's board-sweeping answer to Sony, Dell and all the others who've been proudly strutting their ultraportables. It was enough to send David Pogue into paroxysms of delight, whinnying about "admiration for elegance." Of course, it could only be the MacBook Air. Never before has a keynote product announcement from Apple prompted such contrasts of praise and vitriol: with road-warriors on one side singing praises for a pared down chassis with still usable keyboard and display, while critics bay for blood over absent ports and sealed batteries. Is the MacBook Air going to please everybody? No, not at all; but then again, it really didn't set out to.