Both Vodafone in India and SingTel in Singapore have announced their pricing for the iPhone 3G, which will launch in both countries on August 22. Vodafone will charge Rs 31,000 (~$709) for the 8GB iPhone 3G and Rs 36,100 (~$826) for 16GB models. Customers who pre-registered for the iPhone 3G with Vodafone will be able to visit a select Vodafone Store on August 20 or 21 and confirm their booking by paying Rs 10000 as a deposit. The customer will then…