Speaking of the future of WPF, ScottGu has a write up on all the improvements in WPF 4.

Here’s a condensed list:

Controls

• Controls for Building Rich Clients
• Bag O'Tricks is back
• Windows 7 & Office Ribbon Control

GRAPHICS

• Cached Composition
• Pixel Shader 3 Support
• LayoutRounding
• Animation Easing Function
• CleartypeHint

TEXT STACK

• New Text Rendering Stack
• BindableRun
• Custom Dictionaries
• Selection and Caret Brush

WINDOWS 7 LIGHT UP

• Windows 7 Multitouch Support
• Windows 7 Shell Integration
• Icon Overlays
• Progress Bars
• Thumbnail Toolbars

WPF FUNDAMENTALS

• New XAML/BAML Parser Engine
• Data Binding Support for DLR
• Visual State Manager (VSM)
• HTML-XBAP Script Interop
• UIAutomation Virtualization
• SynchronizedInput Pattern

CLIENT DEPLOYMENT

• .NET Framework 4 Client Profile
• Enhancements in NET4 Client Profile vs. NET 3.5 SP1 Client Profile
• .NET Framework 4 Client Profile (NEW)
• .NET Framework 3.5 SP1 Client Profile
• Supported OS
• Redistributable
• Add Remove Programs entries
• Visual Studio
• Full Trust XBAP Deployment

 

Links to more info on WPF4:

• Channel 9: Chipalo Street explains what’s new and improved in WPF 4 Text
• Chipalo also has a series of in-depth posts on the improvements in WPF 4’s new text stack.
• Channel 9: A primer on WPF 4 Graphics with David Teitlebaum
• Channel 9: Jossef Goldberg delves into what’s new in the Client Profile in .NET Framework 4
• Jossef also has detailed posts that introduces .NET 4 Client Profile and details what’s new in .NET 4 Beta 2 Client Profile
• Channel 9: Mark Wilson-Thomas demos what’s new in the Visual Studio 2010 WPF and Silverlight Designers
• and there are additional Hands on labs and videos on Windows Client.net
• Jaime Rodriguez’s highlights some of the key new features in WPF 4 and the WPF Designer in Visual Studio 2010 Beta 2