From the WhatsApp blog
Looks like Facebook is going to the dumps since they can’t innovate anymore and must buy something new to fix their dying brain cells. I also heard those two creators of WhatsApp apply for facebook jobs and was turned down. And now looks whom is crawling up to their doors and asking for help now. Sure it will be independent from facebook but since they got cash now why stay they can leave and become another facebook or start another startup company and whom do you think will coming crawling to their door-facebook. It looks like facebook has come to the end of innovation and is facing a stagnate growth.