Wireless

Hands On: Push to Talk

PC World's Grace Aquino tested walkie-talkie style services from Nextel, Sprint PCS, and Verizon Wireless. Her verdict: Push to Talk is a useful business tool because it provides easy, instant access to mobile workers. But lag-time issues were a persistent problem.

Suggestion Box

Is there a particularly cool mobile computing product or service I've missed? Got a spare story idea in your back pocket? Tell me about it.