Yet another step in the right direction has been carried out for multiplayer gaming on Windows Phone. Already available on other platforms, Exit Games have released a free Windows Phone SDK that will use their socket-based network engine. While Microsoft was working on "Switchboard", a solution to mobile real-time multiplayer gaming, this solution will be welcomed by developers who wish to implement such functionality into their titles.
Some quick-glance features:
Develop in C# .NET 4.0
Easy UI creation and view-management via Silverlight/XAML
On device debugging
Demo containing sample code for easy integration in your Windows Phone Apps
What's more is that this technology supports cross-platform connectivity. You can head over to the Exit Games website and check out the free SDK for yourself. For consumers, this could mean an MMO (or online FPS) title could be around the corner.
Source: Exit Games