Via the Microsoft Dynamics GP UK Blog, the GP Demo site I blogged about back in November now has more than 20 Silverlight based GP demos. Make sure that you take a look, but not on Christmas. Give it a rest for one day!
GP Demo Site Now Has More Than 20 Demos
Archived post from 2008. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.