writes with a link to news that as of yesterday, Facebook and WhatsApp have both discontinued support for Blackberry smartphones including BlackBerry 10 and BBOS platforms. Apparently Blackberry fought to have the support continue but in the end they were not successful. BlackBerry has had to replaced their official Facebook App with a native app that uses a simple web interface.
If you're still using a Blackberry, it would be interesting to know why. (You like the interface? Business requirement? Just being contrarian?)