Don’t have a walkie talkie of your own? Use your iPhone as a push-to-talk communication device with new app, GroupVox.

- GroupVox adds up to your existing Facebook ecosystem
– Free live voice communication with your Facebook friends over any data network or WiFi
– Live voice chat with members of a Facebook Group or Facebook Event attendees
– Never miss a message: even when you’re not available for a live chat, you may listen to all the messages later
– Record voice messages even when you’re offline
– Don’t feel like talking? Send a text message, to a friend or to a group
– Cross-platform