Walkie-talkie voice chat is coming - back - Komando.com
Motorola Nextel ic502 - Black (Sprint) Cellular Phone Direct Talk - 639381050221 | eBay
It's no accident that Apple chose a yellow icon for its walkie-talkie feature. I dug out my old (2002ish) Nextel with PTT (push to talk). It was all the rage back then... :