when they first were revealed a year ago at MWSF, I was there. they did seem to be a little warm, but so do most laptops I've used. sleek little machines, good for people who really have to move alot, was my impression. Personally, if I were looking @ a 12" powerbook, I'd SERIOUSLY think about getting a high-end iBook instead.
iBook:
$1,499.00
1GHz PowerPC G4
256K L2 cache @ 1GHz
14-inch TFT Display
1024x768 resolution
256MB DDR266 SDRAM
60GB Ultra ATA drive
Combo Drive
ATI Mobility Radeon 9200
32MB DDR video memory
powebook:
$1,599.00
12.1-inch TFT Display
1024x768 resolution
1GHz PowerPC G4
512K L2 cache
256MB DDR266 SDRAM
40GB Ultra ATA/100
NVIDIA GeForce FX
Go 5200 (32MB DDR)
Full size keyboard
10/100BASE-T Ethernet
FireWire 400
AirPort Extreme Ready
Mini-DVI out
Seriously, bigger laptop, less money, comparable hardware. something to think on. plus, the ibooks are sexy as hell, and way rough-and-tumble.