apparently they have gigabit internet in my area now. can go from a "75"mbps (normally get 85-100mbps to the gigabit for about an extra 30 per month. tempting.
*edit* they claim the modem they have is the only that works with it, and you HAVE to rent it. *eye roll*
Pretty sure that is currently an FCC violation, but that may just be cable internet providers.
edit: Well to not allow others, if no other company makes a compatible one then that's another story. But unlikely.