The only Internet access available where I live is HughesNet (which is worse than Dial-up), Dial-up (which is Dial-up), and what we use right now, a Sprint mobile broadband card in a wireless router (which is not much better than Dial-up). I saw the Speedtest.net iPhone app and decided to try it for the hell of it. Turns out my 3GS is much faster than the broadband card we have - the iPhone scores between 1.4Mbps and 1.7Mbps down, compared to the card's 0.3-0.7Mbps (on a good day). If I jailbreak my iPhone, tether it to my computer, and use it for Internet access instead of the crap we have, could I get into any trouble with AT&T? Would anything happen if they found out that I was tethering with a jailbroken iPhone? And could I get away with it if I were to keep the bandwidth usage below a certain level? It'd be a huge upgrade over what we use right now.