The BBM for windows phone has let go of the ‘Beta’ word from its official nomenclature, from the app’s listing in the Windows Phone store. The messaging app, exclusive to BlackBerry earlier, has recently made itself available to the android, iOS and even windows Phone, ever since WhatsApp pegged its value at $42 per user. A very wise decision by BlackBerry CEO John Chen caused this change of course by otherwise tight walled BBM, and indeed, this has brought the ratings a little high.