Apple has released the latest version of the MacBook Air. The ultra-thin laptop comes with an aluminium unibody design and a solid state flash storage drive rather than the traditional mechanical hard drive. The 11.6 inch version has only 64GB of storage but can be upgraded to 128GB, the original 13.3 inch version also gets the same SSD treatment and starts with 128GB of storage increasing to 256GB. Both screen size models come with 2GB of RAM, which can be doubled, and a 1.4Ghz Intel Core 2 Duo processor in the 11" and 1.86Ghz in the 13".