So my dell laptop seems like its nearing its last days. I'm thinking (mostly due to how much I love my iPhone) of finally making the switch to a mac. After using some friends' macbooks...I think this is the laptop I want. However I know the macbook is a couple of years old and was wondering if anybody knows when a new one is due to come out? I would hate to buy one (they're expensive!) only to have a new model come out a month later. If there is a new one coming out soon, what will make it better than the current one? I know that any answers would be speculation, but I would appreciate any insight nonetheless. Thanks!