Appolicious – With so many social networks fighting for your attention, it seems that Mark Zuckerburg and his Facebook team have decided that an increased presence is the way to go. That can be the only explanation for the company’s launch of the unnecessary iPhone and iPod touch app Facebook Messenger earlier this week. True, many apps could be dubbed unnecessary, but I found Facebook Messenger’s existence to be plain silly, considering most of its features are already available in the existing Facebook app.