Sorry to those of you who may have already seen me asking a similar question inside other threads but I wanted to open in up. I purchased a Refurbished MBA around May 28 (just over a week before the latest refresh). I only started reading this site the day of WWDC and was thus unaware of a possible update to delay my purchase. I bought the 1.8 Rev A HDD and I am disappointing in the speed of applications and the common shuttering issues (I know about Coolbook but I think it's ridiculous that Apple doesn't offer a solution). I was unaware of the 14-day exchange period (admittedly my fault) but I have now seen Rev B's in the refurbished section with the new graphics card/128 SSD that I would much rather have for the additional $250. I would even be willing to pay the restocking fee to get this machine. Have people had successful post 14-day refurb returns? The last bit is that my girlfriend will be purchasing a new 2.13 MBA Rev C so I thought I would try and get that salesperson to help but she is waiting for SL and I want to resolve this as soon as possible. Any advice/ideas would be greatly appreciated. Thanks.