We work together http://immediasite.org/pharmacornergr-1fb7.pdf northwestdentalhealth.nhs.uk  BlackBerry Messenger (BBM) will soon be launched on rival platforms such as Apple’s iOS and Google Android and is widely considered BlackBerry’s “golden egg”. Although BBM retains a loyal core of users, its 60m users are already dwarved by the 200m people who use the WhatsApp service, which currently works across platforms, and has replaced text messages for many of its young users.