WhatsApp drops support for BlackBerry and Nokia (Symbian) OSes: http://www.zdnet.com/article/whatsapp-drops-support-for-blackberry-and-nokia-oses/
WhatsApp has announced that it intends to focus on only 99.5 percent of the addressable mobile market, and will be dropping support for BlackBerry OS as well as BlackBerry 10, Nokia S40, and Nokia Symbian S60. Guess that indicates a very similar trend for Mobile Web Apps, hence while not dropping any of these from the DDR, they need no further maintenance. Werner
