Some compared Apple’s new laptop to the Cube; so did I, at first. Right after Apple Inc. announced its new ultralight, ultrathin laptop, the MacBook Air, last week, a colleague asked me what I thought. “Great. For $1,799 you can get this year’s form factor with yesteryear’s processor. And no optical or firewire, either? And you can ‘upgrade’ your hard drive from 80GB to 64GB. Not impressed.”