BBC News have an interview with Vint Cerf on his view on the development of Internet.
The next decade, he believes, will see the net spread even further and start to become the basic communications infrastructure for almost anything. To begin with, he thinks, the net will stop being a part of the telephone network. Instead the telephone network will become a part of the net.
He goes on to talk about IP Telephony and ENUM! Yeppie! :-)
2004 could indeed be the year of VoIP.