MS Popfly - Mashups on Steroids

I just found out about Microsoft Popfly.  It's a new platform/website for creating mashups.  It's not quite open to the public yet, but you can visit www.popfly.ms to request an invitation.  Be sure to check out the 15 minute demo video that shows examples of making mashups from geotagged images on flickr, displaying them on a Virtual Earth map, and all in 3D!  Best of all, you can write it all in managed code with Silverlight.

I've requested an invitation, but I sort of hope I don't get invited.  If I do, then I'm sure I'm going to be wasting a ton of time there.