Here's a review of the Kyocera KR1 mobile EV-DO router. Slide a carrier's high speed EV-DO CDMA card into this device, and it will broadcast a WiFi hotspot providing wireless network connectivity. Verizon has great wireless broadband coverage in the U.S. and a router like this would be applicable for ambulances, covering triage areas in parking lots or setting up wireless networks at disaster sites.

Pictured right is the Kyocera KR1 mobile EV-DO router, complete with Verizon EV-DO radio card.