I'd say 80-170$ monthly.
In the UK contracts start from around £30 per month with an initial down payment against the iPhone. You can have a free handset but pay more monthly.
Currently, on Sprint, the iPhone 4 costs about $99.
The iPhone 4 will be launched in Israel on September 24, ... How much dose an iphone 4 cost? from store the cheapest you'll get it is around £200 pounds .
It does not exist yet the iPhone 4 does.
Probably less
it cost $900
$$50
400 $
the answer is around $230
Because it is on a contract, so some of the cost of the contract goes towards the cost of the iPhone unit. With the ipod touch, there are no monthly fees.
About 120,000 naira