Mark Zuckerberg has finally done it. After a long succession of mobile mishaps, he has delivered the portable Facebook app Ive always wanted… and theres hardly any evidence that Paper is a Facebook product. Upon opening the app for the first time youre greeted with a shimmering Paper logo set in Helvetica Neue Ultra Light, the opposite of the bold, white logo Facebook has used since 2005. As Facebook reaches 1.25 billion active users and celebrates its tenth anniversary, the company faces increased skepticism from both pundits and consumers.