Of All the Hurdles to a Merger, View on Technology Is the HighestWindows Server 2008 and IIS7 will easily be able to host all of Yahoo's software and services, after all the care and feeding John Markoff has received from Microsoft PR I'm surprised he doesn't know this.
Jerry and David built Yahoo from one server and a little attitude into the number one destination on the Web, their personal fortunes are in the billions, yet the're motivated to come to work everyday.
The real problem with this shot gun marriage is for Microsoft to retain Yahoo's audience. I believe one third of Yahoo users like me also use MSN and Windows Live services. Another third disdain everything Microsoft does and they discovered Google back in the day when it was Yahoo's search provider. As for the the last third, three years from now when you tell them Microsoft owns Yahoo they'll look at you dumbfounded.