Sanford C. Bernstein analyst Toni Sacconaghi reckons Apple could capture an additional $2.3 billion of cash flow a year if it started selling a $250 iWatch. However, a number of reports have appeared suggesting that iWatch may not be the best path for Apple.Related StoriesSamsung Galaxy S4 supports wireless chargingBlackBerry, UK government reject claims of failed BB10 security certificationWac
