Facebook will make a 'significant mobile-focused announcement' on Thursday, and published reports suggest a custom mobile phone that comes in one flavor -- Facebook -- is on the way. But will the device be made in partnership with HTC, as rumored? Or will it be something else?

Lindsey Turrentine, editor-in-chief of CNET Reviews joins Marketplace Tech host David Brancaccio to discuss what a Facebook smartphone would look like and why it might sell.