The Prism project is making good progress toward our first release at the end of June..ish. If you want to track our progress for the past iterations, check out the Releases page on Codeplex. In the current drop, we created:
Below is a screen shot of the Event Aggregation QuickStart. You will notice that our excellent UI design skills are displayed with this QuickStart.
We updated the RI's look and feel. Check it out.