The next couple of years could be interesting. Google has been an advocate for network neutrality, which the FCC has indicated it intends to promote. But AT&T has just accused Google of blocking phone calls to rural areas for users of Google's Voice service. AT&T may have a point--Google wants broadband carriers like AT&T to carry all of Google's services without prejudice, but if Google wants that, then it also has to play by the same rules the phone companies are obligated to observe, and one of those rules is that they can't block calls to areas where the access fees (e.g. rural areas) are higher.
Irresistible force, meet immovable object. Someone make some popcorn--this could be fun.