My MBA arrived this morning, so I popped along to the mac app store to see whether I could download a copy of lion to stick on a USB key for future use, or purchase a second copy to download later, but Mas won't let me do either! so how do I get my hands on one? It seems crazy to me that you can't download an os that you have bought the right to use? I refuse to be reliant on my dogslow dsl connection to reinstall lion if I ever need to. Has anyone got an answer before I go off searching for an "alternative download location? "