Some of Brian's hobbies/research/companies:

Brian's low impact living / off-grid homes

Some of Brian's robots

really cheap, really wide area 802.11

Solar Electric System

Home Wireless Video/Audio/Automation System

Building my own cellular data network in the 144MHz band

Building my own cellular data network in the 1.2GHz band

Defunct Rbots Company (sublinks do not work)

Defunct Futuretel Products (sublinks may work)

Why Brian does not fly with his brother