With all the brouhaha going on about the AgDataGrid, it's easy to forget the layout controls that our Silverlight guru Vlad wrote way back when, when the world was young and Silverlight was but a 1.1 alpha release.
Although with the grid it's easy to see the benefits you get (tabular data! sorted columns! grouping! etc), with the layout controls the benefits aren't so easily discernable. It's only when you try and use the panels provided in the Silverlight Framework that you realize what a great product this is going to be. (Martha Rotter at MS Ireland agrees.)
He's updated the demos for the various layout controls (the flow, the docked, and then the uber layout control) in the Area51 part of our website to work with the just-released Silverlight 2 beta 2.
Do go visit and play around with these demos. If you find an issue or a bug, please email support@devexpress.com. They'll make sure that Vlad knows and will respond.