I made a wiki to show you how to work with Crosswalk and Intel XDK. The docs will be kept up to date.
Troubleshooting for errors (if you know some hints to solve known issues, please let me know. Everyone who submits a hint for solving an issue will get a free Game UI copy (of your choice) from my store)
Admob Ads (built-in plugin from Scirra)
All tutorials are free, readable without registration and ad-free!