“If you think far enough into the future, and realize that the iPhone is essentially the Sputnik of next generation computing and telephony, you’ll realize how important the development of presence technology will be in light of the 2.0 Address Book. Sure, the VoIP folks have known about this stuff forever, and CISCO even has a few decent products built on it, but I’m not talking about IP-routed phone calls. I’m talking about IP-routed people.”