The teardown experts at iFixit have just taken apart the new 13-inch Mid-2013 MacBook Air that was announced at Apple's Worldwide Developers Conference keynote yesterday, and while there aren't too many drastic changes in the internals there are a few differences that are worth noting. The team found that the PCIe-based SSD module from Samsung is smaller than the previous model's Toshiba SATA module, which also means that the drive is not compatible with previous MacBook Air models. As noted earlier by AnandTech, the read/write speeds of the flash st