Voxer. iPhone and Android. Free. Voxer is a walkie talkie push-to-talk voice service, much like Nextel - like text messages but with voice instead of text. Send instant Audio, Text, Photo and Location messages to one friend or a group of your friends. Your friends can listen to your message while you talk or check it out later. Works over WiFi or 3G or other data network. Create a new identity or log in with Facebook, sync it with your phone’s address book and/or Facebook, then start chatting with other individual friends, or groups that you join or create. The interface shows a text message style interface. You hold a talk button to record a quick message for the other party, although there’s also an option to listen live to an incoming message that a friend is recording. You can also send text messages within the flow of correspondence. The look of the app is sharp, making it fun to use. When you need quick communication and you don’t feel like typing, turn to Voxer.