I am very sure there is a way to use the tethering without a plan. You will probably find out once people finally get theirs here and someone who has experience with software will supply us with that answer. I would check: Android Forums & Windows Phone Discussion @ xda-developers. The people at XDA are very smart at software hacks so they would probably know the answer when the Titan does release.
Originally Posted by Blacklac
HOWEVER, I should mention a warning that AT&T has been cracking down on people tethering without a data plan that supports it. If AT&T finds out they will probably first send you a text message and then after that you will either get automatically upgraded to a plan that supports tethering or they will take some other legal action. And trust me, if they do automatically upgrade your plan it is an absolute b*tch to get it off. When I had an Inspire 4G earlier this year I ended up giving it to my brother because he wanted a new phone and I am so into getting the newest and best thing that I gave mine to his. He had an unlimited plan with a non-smartphone and we thought that we would be able to slip by and not have to get him the smartphone data plan because he was able to buy a Motorola Flipout (which was an AT&T exclusive phone at that time) and they didn't change his data plan. Well, about a month after he got the Inspire from me he got a text message from AT&T that said he was going to be upgraded to a smartphone plan. They put the $25 a month plan on him and I tried to go online to put instead the $15 a month plan on, since he doesn't use data that often, and it was LOCKED on the $25 a month plan. There was absolutely no way to change it because it even said contact AT&T customer support to change this. So, I called AT&T and the person told me they changed it to the $15 a month plan, but it didn't work. The bill came in and it still showed the $25. I ended up having to call them about two more times before they FINALLY changed it to the $15 a month plan. The point I'm trying to make is: DONT GET CAUGHT. Or else you will suffer through the torture of AT&T customer support and months of trying to undo what has been done.