Housing.com hires 21Diamonds.com’s Richa Bansal as chief business officer, eyes global markets70% of smartphone users spend 15 minutes daily on gaming; Subway Surfers most engaging game: NielsenNo point in spending on customer acquisition if you can’t get your product rightNokia India shuts down digital music store; users can access service on mobile-only platform Music UnlimitedAmazon adds toys & baby products, personal care appliances for India marketplace; home & kitchen to followFacebook shares hit new high, facial recognition feature under FTC scannerHigh iPhone price spooks investors, Apple shares drop