Geneva, Dublin, Stirling, Velocity and Madison are all code names of upcoming Microsoft products and technologies talked about at TechEd 2009. (which one is not a city?)
Bruce Kyle has pulled together links to all of these and more in his recent blog post. He also lays out the projected timeline for their release.
This post is a great resource that I will add to my bookmarks. A quick reference to all the of the cool technology coming out of Redmond in the next year and beyond.