But on the Google Forums, Jean-Baptiste M. "JBQ" Queru, a software engineer on the Android Open-Source Project, warned that "this is a large push," so developers should expect that "it will take some time to complete".
"If you sync before it's done, you'll get an incomplete copy that you won't be able to use, so please wait for us to give the all-clear before you sync," Queru wrote.
The source code is Android 4.0.1, which is the version that will be released on the Samsung Galaxy Nexus.
The release also includes the source code for Honeycomb, but "since Honeycomb was a little incomplete, we want everyone to focus on Ice Cream Sandwich," Queru wrote. "So, we haven't created any tags that correspond to the Honeycomb releases (even though the changes are present in the history.)"