Compared to the costs to carriers in implementing IPv6? That's nothing. I'm not convinced there will be that many extra stale connections, either. Do a signifi

Compared to the costs to carriers in implementing IPv6? That's nothing. I'm not convinced there will be that many extra stale connections, either. Do a significant number of phones switch IPs so often that there will really be a problem, or do they tend to get the same ones back?