I've owned a Macbook for 3 weeks, and am generally happy with it. No moo nor whine, moderate heat emanating from the bottom. And for the most part OSX is reliable and fast. The only exception I found is annoying pointer ill behavior. I document 2 types. 1. When I move the pointer over a window with numerous fields with different properties (ie text field, http link, white space in firefox), the pointer sometimes can't keep up with the context changes and get stuck with text insertion cursor as opposed to an arrow or hand cursor. This is not as annoying, since even with the wrong cursor, I still have an idea where the centerpoint of the cursor and the subsequent click will restore the correct cursor graphic. I see this behavior in a Linux workstation at work. But not on a windows system. 2. Pointer freezes on the other hand, annoys me a lot. This happen 15% of the time when I have several windows open, and closes 1 of them. The pointer will get stuck in place for about 1-1.5 sec. I've never encounter pointer freezes in XP and Linux and wonder if this is an OS X bug. Note that I see both type of behavior even when the processor and system load is minimal, like only firefox is the only open app.