Bharti Airtel has announced that it has reached a deal with Apple to sell the iPhone 3GS in India in the coming months. The company launched the iPhone 3G in August 2008, the same day that rival carrier Vodafone India launched the handset. According to the Wall Street Journal, Bharti Airtel has submitted its bid to participate in a bandwidth auction for 3G services; successful bidders will be allowed to offer commercial 3G service beginning September…