I recently published a little sample project up in the ToTypeScriptD github organization that walks through converting a new Windows 8 WinJS application to TypeScript.
It’s intended to show some of the basic first steps it takes to convert a project over to TypeScript and also how you can leverage ToTypeScriptD to help automatically generate .d.ts based on the windows *.winmd assemblies.
If you’re writing any TypeScript WinJS apps, feel free to check it out. I’d appreciate any feedback you have that can improve on this guide’s steps/approach for porting an existing WinJS library over to TypeScript.
Happy Scripting!