Remember when you used walkie-talkies as a kid? Those things were awesome for communication. Now cell phones are steadily replacing two-way radios. Unfortunately, cell phone voice minutes can get expensive.
HeyTell gives you the best of both worlds. Instead of placing a traditional call, you record a quick voice message. It is sent over Wi-Fi or 3G data so you don't use voice minutes.
Send it to a friend. They can reply in turn with their own message. It's just like a walkie-talkie on your phone. You can also send contact information and even your location.