AAAAAAAAAAAAAAAAAAAAAAA!!! . I spent 2-4 h every night in last  4 months maing silverlight document editor. I drow tre roulers manualy, coded every single  letter behavior and integrated control into framework throught System.Reflection so that user can add functionalty without coding throught admin wizard by connecting silverlight famework objects properties. And now my work goes to trash because Microsoft is about to realise this. Genaraly I like microsoft products, but sometimes they kill me.
(see www.xsilver.net)