According to prosecutors, use of the stingray was authorized under a court order that investigators used to procure real-time tracking information from Verizon Wireless, Rigmaiden's service provider.

ENGADGET: DoJ: Stingray cellphone tracking device falls under Fourth Amendment, but don't ask about it

And until last week, Nextel was the only wireless service provider in the U.S. offering the service.

FORBES: The Push-To-Talk Push

Amp'd Mobile is painting itself as the first wireless service provider to target young adults--and it's developing a sort of "CrackBerry" for kids, a cell phone-like device with a screen to provide all of their mobile entertainment needs.

FORBES: Ten Must-Read Tech Stories

Atlanta-based EarthLink (nasdaq: ELNK - news - people ), the No. 3 Internet service provider in the U.S., is now offering wireless Internet service to not just Blackberry and Motorola (nyse: MOT - news - people ) pagers, but also to devices based on the Palm (nasdaq: PALM - news - people ) operating system and Microsoft 's (nasdaq: MSFT - news - people ) PocketPC platform.

FORBES: EarthLink's Wireless Play