I've just put together a text file listing the addresses of all the I2C 
devices I know about which are either on or planned to be connected to 
Balloon 3, in order to check that there aren't any nasty address 
clashes. It's at
http://www.solidlights.co.uk/balloon/balloon-3-i2c-address-map.txt

If you know of an I2C device you will definitely be using on Balloon 3, 
let me know and I'll put it on the list.

Chris
-- 
Chris Jones - chris@martin-jones.com
Martin-Jones Technology Ltd, makers of Solidlights
http://www.solidlights.co.uk/