The iPhone 4 will finally launch in India on May 27th, says the Wall Street Journal. The phone will be available from two carriers, Aircel and Bharti Airtel. The former is offering both pre-paid and subscription options, charging 34,500 rupees ($763) for a 16GB model, and 40,900 rupees for 32GB. With a two-year subscription people should get back the cost of the phone through monthly credits.