The MacBook is the successor to the iBook range, just as the MacBook Pro is the confirmed replacement for the PowerBook. And it comes in black:


The range was refreshed on 2007-11-01, replacing the dated GMA 950 with a GMA X1300 video chipset as part of its Santa Rosa revamp.
Resources:
Oddities:
- List of Common Problems. Wow.
- Random shut-downs after upgrading to 10.4.7. More power management issues? No, manufacturing ones.
Benchmarks:
- Macworld Editors' Note - in which we find that a white model can be faster than a black one.
- Final Cut and other stuff.
Casing:

- Discoloration Issues - the black matte looks like a better option if you've got sweaty hands.
- Hairline MacBook cracks appearing
Fan Noise:
- Apple MacBook “Moooing” sound identified and explained. - someone at Apple ought to read up on how to deal with Hysteresis in embedded controller feedback loops (a favorite topic of a Control & Electronics professor of mine, who drilled us perhaps a bit too enthusiastically on it).
Temperature:
- The Intel Mac Temperature Database listings, filtered for "MacBook 13-inch 2.0 GHz Black". I don't find these temperatures to be acceptable, or "normal" for a laptop.
- Apple Notebooks: Operating Temperature - how pointless can a KB article be? Ah, wait, there's worse.
Reviews:
- Besides Macworld's main review, see also Rob's piece on gaming. Only 90-odd fps for Quake III Arena? Hmm.
- Greg Storey's DarthBook - "luke-warm". Hmmm. Here's some follow-up, and, as usual, Greg takes the time to answer comments and makes them a worthwhile read.
- Flaky black cover rumor (retraction)
- Notebook Review (overheating and crashes, apparently bad hardware?)
- John Waller's review (video issues upon resume)
- Ars Technica Review (82C? it can get that hot?)
- Kodawarisan's disassembly pictures