According to Netcraft, their latest Aug 2007 survey shows more very large gains for Microsoft technologies on the web:
"What does this mean for Apache? Is Apache dying? Is Microsoft set to take top spot as the web platform of choice?
My take on this is a little out left field; let's look at the bigger picture here. What I believe we are seeing here is quite simple--the old client-server fat desktop model of development is dying, and everybody wants to get in on web apps.