Stuff I do in Debian:
[http://www.debian.org/ports/arm/ Debian ARM], [http://emdebian.org/ Embedded Debian], ArmEabiPort, Cave surveying Packages: [http://www.survex.com/ Survex] for data-processing and [http://therion.speleo.sk Therion] for drawing-up surveys.
other related stuff I do: [http://balloonboard.org/ Balloon Open Hardware], [http://aleph1.co.uk/yaffs/ YAFFS (NAND flash filesystem)], [http://www.aleph1.co.uk/ ARM Linux consulting at Aleph One], part of [http://ffii.org.uk/ FFII-UK], campaigning against software patents.
I also sponsor Ralph Amissah, and Neil Williams.
My homepage here: http://wookware.org/
You can usually find me on the #debian-uk, #emdebian and #debian-arm irc channels.