Well that's good and fine, but I'd like to know what it is.
Perhaps they disabled or crippled indexing and so there is less constant HD useage, or does Windows 7 not do that?
As I said, I have both, and from what I've seen so far the battery life is about the same. I'm going to run some tests tommorrow, but from what I can tell just from occasionally checking the remaining battery life, they're about even.
As an owner of both models, I would be shocked if the Asus gives you 2 extra hours of movie watching time. I have experienced nothing so far that would tell me this can be so.