Good call! I figured MySpace would be one of them, since RIM announced the new application for it. That does seem to be the closest one to the MySpace logo:
The icons are more visible in the video itself, the image is here as a way to reference them.
Come on people. I put the link there for you to see for yourself. It's very clear on the new video of what these icons are. Only thing different on the video is that the Facebook and Flickr icons are inverted. Otherwise using the numbering scheme mike1981x drew up, the following are the icons: