Following discussion with David Bisset and Steve Wiseman in the last
couple of days, I've updated the documents at
http://www.solidlights.co.uk/balloon/balloon3.html
to reflect some changes to make some signals more useful and clarify 
their meanings. The relevant signals are:

GPIO0 - deep sleep wake-up, connected to FPGA and Samtec pin 146, open
drain with pullup, now known as AUX_UNSUSP
GPIO1 - deep sleep wake-up, connected to PINKO_UNSUSP
GPIO9 - standby wake-up, connected to Samtec pin 148
GPIO10 - standby wake-up, connected to Samtec pin 172
GPIO94 - standby wake-up, connected to FPGA and Samtec pin 170, open 
drain with pullup, now known as AUX_INTERRUPT

Cheers
Chris

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