To get started with OpenSensation, you'll need to get familiar with Git and Repo.
To initialize your local repository using the CyanogenMod trees, use a command like this:
repo init -u git://github.com/OpenSensation/android.git -b ics
Then to sync up:
repo sync
Cyanogenmod team intervigilium Evervolv team Tiamat kernel team elelinux toastcfh