Apple announces iPhone 4S

It's official now. A few hours back apple has announced the launch of iPhone 4S. It's great move from Apple. While the upcoming launch of iPhone 5 is round the corner and making a buzz in the market, apple has made a good move by launching it before the iPhone 5 launch. I am eagerly waiting for the OS 4S upgrade on my iPhone. Would love to write about my first impression of the OS.