Hi, I'm Doug Purdy, Director of Developer Products at Facebook. I wanted to weigh in here to explain how we think about some of these things.<p>Successful iOS and Android developers are integrating Facebook into their mobile apps. It's not an either/or equation. In fact, as of this month, more than 81% of the top 100 grossing iOS apps and 70% of the top 100 grossing Android apps integrate with Facebook.<p>All categories of developers continue to build with Facebook (fitness, books, music, games, etc.) with over 10 million apps and websites integrated with Facebook. Notably, games continues to be an extremely popular category – more than 250 million people play games on Facebook each month, and canvas installs have gone up 75% in the past year. Most of our games developers had record years in 2012, and over 100 of these developers made more than $1M in 2012 (in total, we paid out more than $2B to games developers in 2012).<p>With regard to Platform policies, for the small number of apps that violate our policies (replicate our functionality, fuel their app's growth at the expense of people's experience or expectations) we take action as needed. But for the vast majority of developers building great social apps, keep doing what you're doing.<p>Our goal is – and has always been – to give people a convenient way to login to apps, create personalized and social experiences, and let people share the things they care about through the apps they use.