Add the mobile piece to social shopping + social networking and we just might have a new killer app (i.e., huge uptake). What I'm talking about is Facebook's just-announced "Deals." Analysts are saying social shopping (users giving products in virtual stores, or Web sites, a "Like," review, or comment) was ho-hum. What really adds interest and potential mass appeal is a pay-off, the BBC reports – … [Read more...] about Good or bad ‘Deals’ for FB users?