How Will Apple Take Us "Back to the Mac?" [OPEN THREAD]

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Based on the invite, it's virtually a sure thing that Apple will drop details on the next iteration of OS X — which will likely be called Lion. Since we're going "back to the Mac," though, some hardware updates are equally possible.

Will we see an overhaul of the MacBook Air? Is the MacBook going to get a Core i3 processor? Should we expect updates to the MacBook Pro lineup?

Mashable wants to know your predictions, so sound off in this special “Back to the Mac” open thread in the Facebook comments below.