Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3) When will we plan to see version 5.1 available? What are the main feature that will be included in it? And will this impove the battery life on the iPhone 4S? Let me know. Thanks.