Pinger 2

Pinger lets you trade quick voice messages with any US mobile phone without ringing it. Just call the Pinger number, say the names of the people (or group) you want to message and talk. Recipients hear the message right away. There are no annoying prompts, and recipients can reply or forward with a single button. It's faster than typing and powered by your voice. With the Treo app, you'll also have a visual preview of your last 10 Pinger messages (with info like sender, timestamp and duration). Just click a message and it plays right away. Best of all, Pinger is free! We don't charge you anything, though your carrier's normal call and text rates may apply.