This is a cool Social Neworking / Group Activity / Photo Sharing software built by MSR called SLAM. I just got it installed and the experience is pretty sweet. Allows you to join public "slam groups" and share photos and activities. You can also create your own groups. I've joined one called Yummy Food Pictures and browsing through some of the photos.
Download the cab here!
Here's a dorky video the SLAM guys recorded to show you how SLAM works.
it's like Dodgeball on steroids, best of all, it takes advantage of the power of Windows Mobile devices to deliver a much better social networking experience. Come join me. I've created a group called Mobile Geeks to share photos, activities that are related to mobile gadgets.