Free phone calls through Skype for 2006
 

http://www.pocket-lint.co.uk/news.php?newsId=3341

Dialpad used to have this feature until they went corporate. As far as I know, this is the first internet application to do this in a number of years. Think it'll change the way you make calls? Think Skype can gain momentum to take on major telecom companies?

The Internet, along with it's current network-layer protocol, is quite a bad base to run telephone services.
Its best-effort approach doesn't guarantee the required bandwidth for real-time applications, it's too unstable for that.
IPv6 may change that, though.

Unlikely. It will help, but the real bandwidth limitation is going to be to do with the physical hardware in place.