In an impressive new statistical release by Facebook today confirmed that the social network hit $2.02 Billion in revenue. At the same time, monthly mobile active users increased to 874 million, a 45% increase year-over-year. Simultaneously, mobile revenue made up nearly half of Facebook’s total advertising revenue this quarter, an $882 Million business that accounts for 49% of Facebook’s ad revenue. These are almost staggering figures, made even more so by the fact that this mobile ad revenue represents a 478% year-over-year increase. So if any investors or advertisers had any doubts about Facebook’s mobile penetration or business, Mark Zuckerburg just proved them very, very wrong.