You can send new photos, ones you've saved on your phone, or images you find using Bing search. Even people who don't use smartphones can reply to messages just by confirming their mobile phone number to activate Facebook texts.

One thing is certain -- Facebook is serious about improving its mobile offerings; its underscores that point. It also just acquired the location-based discovery app Glancee, which before Facebook closed it and hired its founders let people find strangers in the real world who share their Facebook friends and interests.

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