Windows 8 is a new digital canvas where you can showcase your creativity and flair with apps that reach hundreds of millions of people. The platform provides unique features like Live Tiles, Contracts and Cloud services, so you can engage your audience more deeply in new and creative ways. Enjoy this Jump Start with Microsoft Sr. Technical Evangelist Chris

At some point during your development adventures you'll need to put a rather generic link somewhere with the expectation that no matter where it is displayed you can get relevant information about the current site, list, etc. For me this ended up being a Custom Action. I needed to place a link on the List Settings page and append the list ID as a querystring parameter. Luckily SharePoint has a set of URL tokens that help out in these scenarios.

Here's a free short course that covers the first 4 weeks of the curriculum for developing apps for mobile devices, specifically Windows Phone 8