Hi there. The toolchain session blueprints for the summit are now up on Launchpad: https://blueprints.launchpad.net/linaro-toolchain?searchtext=toolchain-o
You can check out the schedule here: http://summit.ubuntu.com/uds-o/track/linaro-toolchain/
although it's really only for show at the moment. Expect things to jump around as the constraints kick in.
Please go through these blueprints and subscribe yourself to them. You can check your list of blueprints at: https://blueprints.launchpad.net/people/+me?searchtext=toolchain-o
-- Michael