Libretto U100:

Matsushita DVD±RW ???

http://linux.toshiba-dme.co.jp/linux/eng/pc/jp_libU100_report.htm

Review:
http://www.hardwarecentral.com/hardwarecentral/reviews/article.php/3562661
http://www.itreviews.co.uk/hardware/h826.htm
http://www.xbitlabs.com/articles/mobile/display/toshiba-libretto.html
http://www.pcmag.com/article2/0,1895,1788012,00.asp
http://www.small-laptops.com/toshiba-libretto-u100/

Linux:
http://www.inf.ufrgs.br/~jaatavaresf/Libretto_U100/
http://stuff.netropol.de/toshiba_u100/
http://linsec.ca/blog/index.php?/archives/20-Linux-on-Toshibas-Libretto-U100.html

Toshiba Libretto U100:
Size: 21cm x 16.5cm x 3cm (W x D x H) - 0.98kg
Display: 7.2 inch (1280x768)
Disk: 60GB (4200rpm)
Ports: USB2,PCMCIA,SD
Connection: Wireless,Bluetooth,Ethernet,Modem
Battery: 4 hours
http://www.laptops.dk/product_info.php?products_id=522
http://stuff.netropol.de/toshiba_u100/
http://linsec.ca/blog/index.php?/archives/20-Linux-on-Toshibas-Libretto-U100.html
http://linux.toshiba-dme.co.jp/linux/eng/pc/jp_libU100_report.htm
Review: http://trustedreviews.com/article.aspx?art=2014