Dr. Boustani, who is also associate director of the Healthy Aging Brain Center, says he is working with health-care systems in other states to duplicate the program, with an aim to affordably scale up the model to a national level.

WSJ: New Push For Early Testing, Treatment For Dementia

They're using data collected by the weather service during the storm, to try to understand the surge, try to understand the wave heights, and they're going to create a computer model, as opposed to the scale model of a city, for the storm as it came up from the south and the Gulf of Mexico, and see if they can recreate the exact conditions.

NPR: Scale Model Aids Probe of Katrina Damage

As the first really big acquisition of an enterprise 2.0 business it also validates the bottom-up sales model which Yammer pioneered on a large scale.

FORBES: Yammer, Microsoft and the Enterprise 2.0 Premium - Deliver Technology People Love