i would say the iPhone 3G (Refurb) is at ATT.com $99.00
on emall of SuNing, you can find more cheapter iphone.
I would have to say that the basic iPhone would be the cheapest one to buy. If you are looking to keep up with the latest technology, you should get the newest iPhone.
I think the cheapest iPhone on the market is probally the ones at Target. You can buy an iPhone for like $130.00! Defintally go to Target!
Sprint has the cheapest iPhone plan right now. You can get an iPhone plan from them right now for only $69.99.
The cheapest Iphone 4s prices are available directly from Apple. An Iphone costs only $99 (reduced from $599) when you purchase it with a 2 year contract.
It depends on the provider
You can go to eBay!
£85
dollar store
Well If You Want To Find The Cheapest IPhone You Would Want To Go To Currys, And They Cost At Curry's:- £87.00. That's A Good Piece Of Advice !.
Pawn shop.
Virgin mobile
Amazingly the cheapest way to get an iPhone is to purchase it outright from an apple store. you do not pay retail on the item thus leaving you with the cheaper alternative. also don't be fooled into thinking that mobile service provider plans are cheaper as they usually are not and can make you pay heaps more.
The cheapest way to get an iPhone 4 would be to purchase it from one of the major cell-phone retailers with a two year contract. You can purchase one on Amazon, but it will cost you considerably more money.