This article first appeared on iPhone.Appstorm, a popular Envato website reviewing iPhone apps. The site was subsequently sold to a new owner and, a number of years later, the article was lost. I have republished it here for reference.
With the advent of smartphones, and largely driven by the market-defining success of the iPhone, the way in which we employ these devices has changed. The telephone and the mobile phone were designed so that we could speak to each other with distance being no object. Nowadays, we increasingly email, text, iMessage, twitter, facebook or google. We are using mobile phones to talk increasingly less. Despite this, an app called Wavedeck Voice Messenger PTT makes it easier to communicate than, say, texting.