I want to pre-announce another sample that will soon be available on ISN for download, certainly either during or right after GDC.
Case Study: How Intel® GPA Measurements Alerted Me to Greatly Improve the FPS of my Windows* 8 Store App: The DispatcherTimer
Last year, I wrote a blog about creating your own simple collision detection code. I implemented this for a children's math game I created. You can refer to my blog here
The Mesa Hackerspace HeatSync Labs was the venue on Sat Dec 1st for an HTML5 Gaming Hackathon.