It seems that tweeting is the new form of texting these days, and if you aren't a part of the Twitter using clan, then I would highly recommend you register yourself and see what all the fuss is about. The popularity of Twitter is increasingly obvious due to the massive array of third-party apps and clients popping up everyday for different desktop and mobile platforms. One of the latest to find it's way into the mobile world is the Voice Tweet app that does pretty much as the name suggests.
