I figured this topic is worthy of revival... as the smart meters are still actively "proliferating".
Some people have had them for years already, some have just gotten them... and others are wondering when they'll be hit. As of 2013, we still don't have one.
As I understand it, the deadline for these meters to be installed is "eventually"? I've heard dates as far in the future as 2016.
In PA, the meters are being installed under PUC Act 129, effective 11/14/08... so it's been awhile.