This is downvoted, but I think there's some smartness to it. My experience with the Mac is that apps for it are more often geared to work in not-full-screen wi

This is downvoted, but I think there's some smartness to it. My experience with the Mac is that apps for it are more often geared to work in not-full-screen windows; my personal hypothesis (with absolutely no documentation or backing) is that more Windows apps are most comfortable to use when maximized (and thus many new-from-Windows users look for a maximization button) because of MS-DOS' full-screen ancestry. In support of this unsupported theory: many more Mac apps seem to look silly when resized to unexpectedly large dimensions than do Windows apps. Full-screen apps in Lion are a bit of a different thing because they exist in a conceptually separate place from "maximized" windows — they are to the side of the desktop, not on top of it.