I think you're looking for the MonoMac project. It's doubtful that you want to develop actual UI using WPF. Binding to native widget will give your app a much more integrated feel.
Sorry if I've misinterpreted your question as I'm not big on .NET but there are full, commercial OS X apps developed in C# on Mono: http://thread.gmane.org/gmane.comp.gnome.mono.devel/35827 .. an interesting hackaround to get a "native" interface though.
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Are we getting any closer of developing .NET / WPF apps on Mac? (Wishful thinking, shameless cry)
I think you're looking for the MonoMac project. It's doubtful that you want to develop actual UI using WPF. Binding to native widget will give your app a much more integrated feel.
http://www.mono-project.com/MonoMac
Sorry if I've misinterpreted your question as I'm not big on .NET but there are full, commercial OS X apps developed in C# on Mono: http://thread.gmane.org/gmane.comp.gnome.mono.devel/35827 .. an interesting hackaround to get a "native" interface though.
I read a few articles yesterday regarding WPF/Silverlight and politics inside Microsoft written by ex-Silverlight Product Manager:
http://www.riagenic.com/
(Check the blog section)
Hopefully that can give you some idea what the future will hold for WPF.
.NET? Mono works... but good luck finding anything close to WPF.