Mantis is a WinFX based multiplayer game and engine. All of the GUI and rendering is done using Windows Presentation Foundation and the networking is done using Window Communication Foundation. If you are attending the PDC, be sure to check it out at...

Andy has posted that there is going to be a DirectX Birds of a Feather session at the PDC next week. Sounds fun! http://www.thezbuffer.com/articles/267.aspx