Jack Dorsey and colleagues have announced Square; a mobile payment acquiring terminal that is small enough to fit on a key fob, and works through any mobile phone with an earphone plug. First iteration works with the iphone, but it will work with blackberry and others. The common requirement appears to be a mobile device that accepts 3rd party apps, and has a standard earphone jack. The device and application acquires the data through conversion of sound into data, then transmits. The device is designed to replace the merchant terminal for small businesses, replace the monthly terminal fee, and replace … Continue reading The first genuine payment innovation for a while | Square