From what I read... you cant use anything but the modem they provide. It uses Certificate based authentication for the network, and no other device would work without some reverse engineering and custom firmware.
That's what I have and I have the U-Verse Small Business service (ie. more expensive for the same Internet, but my company wants me to have a "business" service for expenses purposes).
I'm trying to figure out if I can use the 2wire to do all of the authentication stuff, but then have some other device really do the IP. I think it would take some fancy layer 2/layer 3 filtering and NAT though. It'd be a fun hack that not many people would be able to pull off.
