so i jailbroke my iphone 3G the other day for only one reason. to enable tethering. we have no internet at my house (because att is a ) and when i heard about tethering i went to work on researching jailbreak. i finally did. i know the cons about doing it (void warranty, bricking ect) but i dont intend to go hardcore with it unless i find something awesome. anyways. does anyone know if tethering costs money if you get it via a third party app? it doesnt technically enable the tethering option, it just turns my phone into a "3G modem". ive heard things from both sides of the story but i would like a more definite answer. i have the unlimited plan... but how would i get charged? is there a cap they dont tell you about?
as a a side note... my ultimate goal is to play xbox live. need....MW2...
thanks! any and all help would be appreciated!