A more efficient approach for live TV is to “multi-cast” a signal to all handsets using a separate radio network overlaid on the existing mobile network.

更有效的一种方法是让电视直播通过运用分散的网络辐射装置发出讯号，覆盖所有可用的移动网络，从而尽可能大范围地向所有掌上设备散播无线信号。

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Sprint customers could have handsets with two-way radio service and Nextel users would gain the benefits of Sprint data and voice telephone service.

FORBES: Connect

The concerns stem from the emissions of radio frequency (RF) radiation by both the handsets and the base stations that transmit and receive the signals.

BBC: Public Petitions Committee

There will still be plenty of goodies on that front, however, including the TrackID service mentioned on those new handsets, which'll let you identify a snippet of music off the radio and then grab it straight off the PlayNow Arena service.

ENGADGET: Sony Ericsson announces plans for PlayNow Arena service