From Orbitcast:

Andretti Green Racing's partnership with XM Satellite Radio has more to do than just talk shows and sponsorships. AGR used XM WX Weather for up-to-the-second intelligence during the rain-soaked Indy 500 as part of their arsenal of tech tools.

While other teams were relying on local weather forecasts to layout their strategies, AGR was using streaming real-time weather data delivered trackside to their team computers.

Well, not quite. Although they might have had this data they certainly didn't make good use of it. I watched the Indy 500 and I was pulling up weather data from various online weather sites. It was obvious to me that they wouldn't finish this race without rain coming in big time for a second time and ending the race. With AGR having 3 cars up front I would have definitely left at least 2 if not 3 of them out there running instead of pulling them into the pits. The decision to bring them into the pits cost them dearly if you ask me.