As predicted, the MacBook Air has been updated hot on the heels of the release of OS X Lion. The update sees a few welcome upgrades to the hardware, including the return of backlit keyboards and an upgrade of the base RAM from 2 to 4 GB. The base 11-inch MacBook Air now comes with a minimum 128 GB SSD, far roomier than the cramped 64 GB last generation's base model had.
The MacBook Air's CPU has seen significant upgrades to Intel's "Sandy Bridge" architecture. The base CPU is an Intel Core i5 clocked at 1.7 GHz, and build-to-order options exist to bump the CPU as high as a 1.8 GHz Intel Core i7. These are by far the fastest processors the MacBook Air has ever had, and while it'll likely be a couple days before they're benchmarked
