The iPhone 4S, which goes on sale in the US and a handful of other countries on Friday, is scheduled to be launched in India before the end of this year, credible sources told BGR India. These are the same sources who had informed us about the reverse subsidy model and that the iPhone 4 will be sold factory unlocked weeks before the official announcement from Apple and the two carriers – Aircel and Airtel. Currently, we are looking at a November launch, which might get delayed to December, depending on ...