WhatsApp Pulling Support for Older Devices, Operating Systems

What do BlackBerry (including BlackBerry 10), the Nokia S40, the Nokia Symbian S60, Android 2.1, Android 2.2 and Windows Phone 7.1 have in common?

What do BlackBerry (including BlackBerry 10), the Nokia S40, the Nokia Symbian S60, Android 2.1, Android 2.2 and Windows Phone 7.1 have in common?

david.cohen@adweek.com David Cohen is editor of Adweek's Social Pro Daily.