Looks like this is all but a done deal, for better or worse (better because VoIP companies will now have the legal right to have access to 911 answering centers, worse because it’s probably going to cost them, and that cost will be passed on to the customer, and I’ll bet most of that money will somehow wind up in the pockets of the incumbent telcos):
The Senate recently approved a bill requiring VoIP providers to ensure 911 access to customers. S428, the IP-Enabled Voice Communications and Public Safety Act, gives VoIP interconnection access just like the traditional phone companies have—making sure that 911 calls made over VoIP lines will reach a live operator every time.
Full story here:
911 Bill Passed by U.S. Senate | About VoIP