Im in the market to get a new phone.. and Ive had android based phones now since 08/09 and since the app was released I have been tethering from my phone to PC for internet when mine is down (and thats a lot). So Im thinking of getting an iphone 4s and jailbreaking it so I can possible tether from it for free. Has anyone ever messed around with this?

(sorry if this is against off-topic rules)