Coding4Fun Toolkit v2 http://coding4fun.codeplex.com released! New items and the start of Windows Store support! The same XAML / APIs will work against either platform.
The Coding4Fun toolkit is a set of API wrappers and XAML UI controls for building Windows 8 & Windows Phone apps. Keeping with a Coding4Fun tradition of making hard things simple, complex APIs are as simple as Start and Stop and controls all have a system-level polish to them. The new version’s target was to give same API/Control works against Windows Store and Windows Phone applications. Write once, deploy anywhere.
Download from http://coding4fun.codeplex.com/
I have used the toolkit myself for my Sphero Control app. http://www.windowsphone.com/s?appid=35cd9766-6888-4bfa-b515-13ed5fc9fed5
Varous Color Picker controls for Windows Phone 8 and for Windows 8.