Andrej Tozon's blog

Infragistics released their NetAdvantage for WPF controls suite. There's just a couple of controls included, but they look mighty fine and powerful. You can take a look at their XAM Showcase in XBAP flavor here [.NET FX 3.0 is required in order to run the Showcase].

[Update: Infragistics offers discounted suite, along with free xamDataGrid, to current MSDN subscribers]