A feature that Facebook had been testing on both iOS and Android devices is now becoming available to everyone. The feature, also known as Photo Sync, uploads all of the pictures a device takes to a private photo album on Facebook in the background. Users can then go through and make public those photos they want to share.
This new feature has several implications. First of all, it marks Facebook's entrance into the cloud storage market as they are essentially storing photos for users and they aren't requiring them to be made public. Second, this new feature could increase the numbers of photos shared on Facebook, an important thing for the company.
More photos shared will result in people staying on the site longer, increasing the amount of ads that can be served, which, in turn, increases revenue. It will also take away some of the frustration users experience as they will no longer have to wait for photos to upload. You can find out more information about the feature from Facebook.