You know, I have to agree with nstallion (and many others) in that you really should not try to use your Xbox with your Droid Data plan. Not only are you going to get caught and be in a whole new world of hurt, but your ruining everything for the rest of us. We already have to worry about Verizon putting caps on our data plans because AT&T did. But with so many people tethering in irresponsible and stupid ways, it may happen faster than we want it to.
Please, please tether responsibly. You're not just hurting yourself, but your hurting those of us that tether for emergency purposes only. I tether when I'm at my girlfriends house ONLY if I absolutely have to. And then, I only use 10-20 MB while tethering. That is responsible use.
I'm telling you right now, when (not if) you get caught, you will be sorry you ever even though of tethering your phone to you Xbox. And then, I promise you, you will be flamed on this forum when Verizon caps our data plan simply for mentioning that you tethered your phone to your Xbox.
So please, just forget that you ever had the thought and don't even try to tether your phone to your Xbox.
Kratos