How BlackBerry really plans to cash in on BBM

WhatsApp has shown that having a hugely popular mobile messaging app can be very lucrative and now BlackBerry is looking to cash in on its own widely used cross-platform BlackBerry Messenger service. We already know that BlackBerry is planning to incorporate ads and in-app purchases into BBM but the company on Tuesday unveiled a new version of BBM that could make the mobile messenger into even more of a cash cow. BlackBerry says that its new BBM Protected, a new version of BBM designed specifica...