For some reason, you may prefer 2-ways radio conversation for frequent and brief voice conversation under certain situation. Without spending extra money for a new pair of RF based walkie-talkies, there are some apps available that can tranform your iPhone to a network based walkie talkie for such purpose. While most of them are not free and required minimum charge when you purchase from iTunes … Continue reading Top 3 PTT (Push-to-Talk) Apps For Apple iPod/iPhone 3G/3GS/4 and iPad