I'm struggling with this one - but I am not an expert. Can anyone think of any feature/functionality or speed differences there would be between the current C2D MBA (assume 2.1 4GB RAM) and a future i7/i5 MBA with Lion? Could Lion in some way be slower or more restrictive on C2D machines? I really want an MBA. But I don't NEED one. I have a 2008 Macbook that is my primary computer and is OK for now (although slow with beachballs often.) But I don't want to wait until next year.... I'm SO hoping it's out in June. I don't want to get a MBP and self install a SSD (although maybe I am stupid) for fear that there will be an issue (ie the sleep/hibernate problem people are having, or maybe Lion will have an issue with it?). Thanks for advice.