Gumstix

The gumstix motherboard used is the verdex XL6P. It has a 600MHz Marvell XScale processor, 128MB of RAM, and 32MB of flash.
The 120 pin expansion socket has a netCF-vx network interface card for TCP/IP networking. This card also has a Compact Flash slot should additional storage be required.
The 60 pin expansion socket has a breakout-vx card to allow access to the I2C signals, serial ports, and various other GPIO possibilities.

Links

Hardware

Gumstix computers
Gumstix Documentation Wiki

Software

Boa Webserver is the webserver on the Gumstix.
cgicc is the C++ library used for handling web scripts.
Buildroot is the system used to build the root image for the gumstix.

Tutorials

I2C Linux from userspace.
[http://www.yolinux.com/TUTORIALS/LinuxTutorialC++CGI.html libcgicc