Some manufacturers will not allow their equipment to be modified, even with security updates, partially due to regulatory restrictions.

FORBES: Yes, You Can Hack a Pacemaker (and Other Medical Devices Too)

In addition to consumer use, the airlines are planning to use Wi-Fi for onboard medical diagnostics, weather updates, and in-flight equipment monitoring, so ground mechanics arrive at a flight knowing what needs to be serviced.

FORBES: Coffee, Tea Or Broadband

Customers can visit directv.com to learn more about the full complement of DIRECTV's HD programming lineup including existing channels, new channels, details on equipment required for the new DIRECTV HD services and updates on when the new markets will launch.

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This work eventually fed into the creation of Twitter, which lets not just vehicle fleets but regular people broadcast instant status updates with no need for specialized equipment, and not just across a city grid but across the globe.

WSJ: Simplicity and Order for All | Innovator of the Year 2012 Technology