Last night, Delay announced the publishing of the Silverlight Airlines Demo from Monday's keynote.

Silverlight Airlines Demo

He and a colleague, Ted Glaza, built the demo in three weeks, beginning with nothing and building on top of the Silverlight .NET platform as it was still being developed.  Now you can play with it yourself in a browser.

You might also want to try the very clever Silverlight Chess demo that Scott Guthrie showed during the same keynote, which can pit the Silverlight Javascript AI against the Silverlight .NET AI.  Check out the difference in the number of nodes processed in the screenshot below!

Silverlight Chess Demo

You can download the chess and several other demos from the gallery page on the Silverlight site.