The foundations are now being laid out for the inevitable upgrade of the Internet towards IPV6 that may result to emergence of trillions more Internet addresses. (Truemors)
I asked Lawrence Hughes of InfoWeapons about this and he believes that trillions may be an underestimate. "Each NETWORK gets many trillions of addresses (a "/48 block" of 2**80th addresses), and there are enough "/48" allocation blocks for every human alive to get over 4000 of them."
InfoWeapons is a member of the IPv6 Forum and Lawrence is the head of the Philippines chapter. The company is also a member of the US IPv6 Consortium. They have been running a production IPV6 network for almost 3 years in Cebu.