When Mayor Bloomberg wants to make an announcement with Microsoft, CEO Steve Ballmer gets on a plane and flies to New York City. That’s because he’s Mayor Bloomberg, but also because New York City is a very large customer with 100,000 city employees. Today Ballmer and Bloomberg are in City Hall announcing a new five-year deal which will roll up dozens of separate city contracts with Microsoft into one master agreement and is projected to save the city million.

The savings will come from the consolidation of different contracts, but also by shifting some of the city’s software needs to