Facebook has sent out invitations to an event on April 4, where the company promised to unveil its 'new home on Android.'
Reason one: Facebook is now a public company, with obligations to its investors. Those investors want Facebook to make a lot of money. And right now, the best place for Facebook to make a lot of money is in the field of mobile advertising.
As the Guardian noted back in January, the mobile trends are already moving in the right direction for Facebook – revenue from mobile advertising has doubled and more people access the platform from phones or tablets than they do Web browsers. But a Facebook phone, assuming it was popular, would help keep users even more plugged into the Facebook eco-system. There might be a specially-designated Facebook button, for instance, for instant posting.