I am going to start recording some short video tutorials on programming for WP7. There are many different things that I have done on a WP7 that could be good lessons for others.
I am also going to look to my group AppRochester to make some videos and blog posts for other platforms such as iOS and Android. I could do those as well using MonoTouch and Mono for Android, but there is a good training section on their website for people to use.
Depending on how well these go I might also do some around Windows Azure and SQL Azure. If there is something that you want a video or a blog post on about WP7 programming, please let me know.
The first one coming soon is getting started with WP7. I will be going over how to get started with WP7 programming, including where to download the needed tools and what are the basic project types.