So, I have a 15" Macbook Pro that is about a year old now. I love this machine: my favorite machine out of 25+ years of owning personal computers. Recently, as an extravagant birthday present, I got a 1.6/HD Macbook Air. I spent a lot of time agonizing over whether or not the limitations would be a problem, would it have fan problems, would it run too hot. All the stuff we see posted here. Anyhow, the MBA has been working pretty well and I find that I now think of my much-loved MBP as "the dinosaur". I really have no clue what to do with it. My primary use of the MBA is "portable office"... web, email, iLife, iWork, MS Office. I don't game on it (but I didn't on my MBP either), I don't store my media on it (but I didn't on my MBP either). Heat... pretty much never above 55 unless I intentionally push it (which I have). Fans, don't remember them above 2600 unless I'm trying to make them run high. Battery life... 3.5 hours usually. Wish it was more, could probably stretch it to 4 with some tuning. So, I guess my message is this... if you fit the right user profile (this is critical), then the MBA is a truly great machine, even with the revision A limitations and problems. Perhaps I got lucky with the unit, perhaps not. I think the more significant factor is that I'm in the sweet spot for the user profile... very portable, office/productivity-style applications.