You know the Request for Permission window (shown above) well. It pops up almost every time that you attempt to access a new application or feature from your Facebook page -- or from one of the millions of sites that now uses Facebook Platform. But something is different about it. Instead of just showing "Access my basic information," as it has for some time, it now includes "Access my contact information," a feature that, should you select "Allow" will pass your current address and mobile phone number to whichever application is trying to gain access to them.
On Friday night at exactly 9:00 p.m. Jeff Bowen posted a new entry on the Facebook Developer blog, a virtual space where the social network updates outside developers that use the services provided by Facebook Platform, that highlighted the new feature. It provided step-by-step instructions for developers to get your most coveted information. "We are now making a user's address and mobile phone number accessible as part of the User Graph object," Bowen wrote. "Because this is sensitive information, we have created the new user_address and user_mobile_phone permissions. These permissions must be explicitly granted to your application by the user via our standard permissions dialogs."