Tesco Mobile has announced their contract and device prices for the iPhone 3G and 3GS that will be lighting up their network on the 14th December.

Users will have to pay a higher initial price for the device, but will be able to get both phones on £20pcm contracts that are only tied down for 12 months (which gives you a £60 combination of texts and calls to use each month). On this plan, the 3G will cost £222 up-front, with the 16GB 3GS costing £320 and the 32GB variant running you £407.

There is also the option of a £60pcm that's locked down for 2 years, with which you get an "unlimited" selection of texts and calls (fair use pegged at £500), with the 3G and smaller 3GS being free.

There's also a PAYG version of all three, costing you £342, £440 and £538 for the 3G, 16GB 3GS and 32GB 3GS respectively.

All plans come with at least a years free web over 3G as well as WiFi provided by BT Openzone (fair use applies).

[Tesco Mobile iPhone]