Crosswalk is an app runtime based on Chromium.
It is an open source project started by the Intel Open Source Technology Center (http://www.01.org)
Check out our Wiki.
How to use Crosswalk you can ask on the mailing list : https://lists.crosswalk-project.org/mailman/listinfo/crosswalk-help
Development of Crosswalk : https://lists.crosswalk-project.org/mailman/listinfo/crosswalk-dev
We are also on IRC : #crosswalk on Freenode
Crosswalk's code uses the BSD license, see our LICENSE file.