buying from US it not going to make any sense.
its going to be almost same price with your
shipping charge and custom and other taxes.
i canceled my same plan.
if you buy look for description which says Unlocked.
actually it does make lot of sense. iphone 3GS that is being sold in USA is lot lot better than the stale iphone 3G. it has got lot better hardware.
@OP, unless that phone comes with 3.1.3 firmware, you can easily unlock the phone and use it with any GSM n/w in India. 3.1.3 blocks all such hacks and unlock hack for 3.1.3 is yet to come out.
This thread contains all the info that you need: *www.thinkdigit.com/forum/showthread.php?t=96554
Note: Iphone 3GS is not yet supported in India.