Got my C2D MacBook last week (that is possitivly the last time I order direct from Apple - their courier of choice has been consistently aweful every time I have done so).
Speed - Good, even with Rosseta on only 1 MB.
Screen - Looks like I was lucky and got a zero dead pixel screen. Viewing angle is a little narrow, but good enough for the things I need to do on the go. The Mini DVI adaptor I also purchased allows me to use an external monitor if I need a better quality image.
Battery - Got over 4 hours out of it with ease with light airport use.
Airport - Works flawlessly with my Lynksys WRT54GSV4 router (as has all the other Macs). Also performed well at public wireless hotspots (I was away from home just after I received it - so it got a workout on the road).
Bluetooth - Works well with the wirless Mighty Mouse I ordered with it.
Keyboard - I like it better then the keyboard on the MacBook pro - one of the reasons I did not order a pro
Trackpad - Could almost get use to using it. Prefer a mouse, but this trackpad is much better than the ones I have used in the past.
Heat - It gets warm over where the magsafe connector is located, and the underside also gets warm on the rear left quadrant. Kind of remindes me of the old ZX Spectrum (my first computer). Warm air is also vented out from the hinge. While I have not measured the tempatures, the heat appears not to be excessive. Certainly no worse than the office Dell I was using before. Have not played around with temp monitoring software - so I can't give hard figures on temps.
Noise - The machine is not silent. It is quieter than my Mac Mini, but there is a combination of drive noise, fan, and unidentified component noise. All said and done, it is the quietest machine I have ever used. Stressing the CPU causes the fans to kick in more - but again this noise is no worse than my Mini under maximum load. Everyday usage is fine. DVD drive is a little loud when reading disks (but not playing movies), but I have never found one that isn't. Some models I have used are far worse.
Build Quality - Only issue I have with the build is that on the left hand side of the keyboard - just about where the magsafe connector is - the keyboard surround has a minisule bulge. You can't see it, but you can feel it. It is not enough to obstruct the screen when closed, but it is a little bit of a shame that what was otherwize a perfect product is marred.
Got a Tucano Second Skin Microfiber case for the MacBook. It is excelent.
I installed Parallels on my MacBook and tossed on a W2K licence (decommisioned the machine it was installed on last year - so the licence was just laying around anyway). Only need windows for four specific programs that I use once or twice a month. This works great. Now I can toss out my Windows machine and free up space under my desk for my Mac Pro (my mother got the Mac Mini).
Anyway - so there I was away from the office for a week on an IBM site in a room with my gleaming white MacBook surrounded by IBM and Dell laptops ...