Top Global offers an affordable, easy to use, plug and play 3G (EVDO, UMTS, or HSDPA) wireless security and surveillance solution for construction sites, emergency sites, temporary locations, and remote buildings monitoring.

This 3G solution only requires power and can be placed on moving vehicle such as fire-trucks, police car and ambulance.

Video from any of these hard to reach fixed or mobile environments can be viewed and monitored from anywhere on Internet.
More details in this press-release.

I wonder how those video cameras in Formula One cars transmit video. Maybe they are also 3G. Those in car cameras are the greatest thing for motor sports. They do it now also in Rally Car racings.