Research In Motion (RIM) has released a new version of the BlackBerry App World (version 3.1), which includes a few cosmetic changes. The biggest of them is app gifting, which the company has been talking for quite some time, and is apt for the coming holiday season. You can now ask for certain apps as a gift from your BBM friends, as well as buy gifts for other BlackBerry users through the same mechanism.The content rating system is also available, with general, teen, mature, and adult ratings as needed. The...