It looks like Motorola is about to become the fourth company to launch its own Facebook phone, after HTC, INQ and more recently Vodafone, have released similar handsets. Although the company has yet to make it official, the sources dicovered the Motorola  Motokey Social EX225 mobile phone.

Motorola Motokey Social EX225: Facebook Button

Fortunately, a small picture showing the EX225 is also attached to the phone's short specs sheet. Based on what's showed in the picture we can safely assume that the handset will be delivered with a dedicated Facebook button.