As part of the Back to School promotion, if a computer is purchased now, it will be upgraded to Lion when the software is released. The $29.99 package for Lion is a multi-computer upgrade... I realize I'm speculating here, but is there a chance I will receive a free upgrade for my iMac if I grab one of the new MBAs before Lion is released? I'm curious if Apple will distinguish between upgrading a single unit or just crediting my App Store account for the upgrade. Any thoughts?