Where is the source of the W3C Pointer Events specification?
The source of the W3C Pointer Events specification is stored at github.
Where do I find the current issues that affect the use of Pointer Events on Chrome?
This site shows daily testing result for the four major browsers: Chrome, Edge, Firefox, and Safari.
Web API - Basics – Basic HTML5 Pointer Events information
Web API - Overview – An HTML5 Pointer Events overview
Web API - Reference – Information on the HTML5 Pointer Events API
Web API - Sample Code – Full HTML5 Pointer Events demo sample
These sites also provide very good API overviews with even more programming examples: