This is just a very short post to point to a CTP of a toolset that will be very important for those that like me have to write code that runs in multiple CLR hosts. The Portable Library Tools adds a new project template to visual studio that helps you through the process of writing code that runs on all selected platforms. Once the project goes RTM there is the promise to support executing the produced assembly in all the hosts. To do this today I have to maintain separate project files even if the code is exactly the same. You can read more about it here.