Update (4/29 12:08pm): Looks like the $599 model is now sold out, but stay tuned because we will let you know when they are back!
The release of updated MacBook Air models this morning has prompted Apple to drop the price of previous generation refurbished models down to unprecedented levels. The mid 2012 models now start at just $599 and include a 1-year warranty. These models feature dual-core Intel Core i5 processors and LED-backlit widescreen displays. There are currently three different models listed with storage capacities up to 256GB, but that can change at any moment since Apple refurbished inventory is generally extremely limited.