I'm looking for a prepaid microsim card that will work in USA, London, and India. Basically I'm traveling with several stops on the way and would like to make quick phone calls to family to let them know I landed in airports and to pick me up. I'd like to purchase the micro sim so it arrives to my home in USA and have it activated so I can test it out, then use it in London and Delhi. Has anyone found a reasonable priced service like this? I'm seeing GoSim costs more than $3 per minute to make a call from india to an indian phone, and around $0.50 - $1.00 per minute to call india from USA to UK. Are these normal prices or rip offs? I will be using the microsim in an unlocked iphone 4. I don't need data but wouldn't mind it if the price is reasonable. Also, I'm leaving on January 9th and only need the service to run for 2 weeks, so anything that last 30 days is fine. Thanks!