http://www.itwriting.com/wpfe.php
The prospect of hosting WPF/E in a desktop application is intriguing, potentially overcoming some of the deployment difficulties inherent to the full .NET Framework, which has a large and somewhat intrusive runtime, as well as offering cross-platform potential. "WPF/E can be hosted natively," says Key, "so you could actually take XAML, host the DLL natively, and attach the XAML UI to a legacy codebase. You could actually compile it into your app. The licensing details for that are “coming soon”, but that is our stated strategic objective, to make it everywhere available.
http://blogs.msdn.com/mharsh/archive/20 ... 59106.aspx
So what is WPF/E? It is a cross-platform, cross-browser web technology that supports a subset of WPF XAML. WPF/E also has a friction-free install model and the download size we’re targeting is very small. WPF/E supports programmability through javascript for tight browser integration. The WPF/E package also contains a small, cross platform subset of the CLR and .NET Framework that can run C# or VB.NET code. Yes, we are bringing C# programming to the Mac.
http://www.builderau.com.au/program/wor ... 400,00.htm
Microsoft said it will create versions of the WPF/E software for Windows XP, Windows 2000, the Firefox browser, the Mac's native Safari browser, and mobile phones. Microsoft will rely on third-party companies to make editions of WPF/E for Linux and non-Windows Mobile phones, executives said.
Miguel de Icaza, Novell vice president of development in charge of the Mono project, which brings Microsoft development software to Linux and Unix, said he sees advantages to WPF/E.
Cheers, Roman