Finally launched! This thing is less than 1cm thick at it's thinnest point. Something like 9.7 mm thick!
Small HDD though...only 20GB. Wireless via PCMCIA. Ethernet and VGA output via external dongle. 512MB RAM max.
Sony Style Japan will be the only place to buy the carbon fiber body model. They are also selling a package with what looks like a Zero-Halliburton aluminum briefcase.
UPDATE: ZDNet Japan review; Impress PC Watch review; ascii24 review
ALSO: Sony corporate press release