Great article in Wired Magazine: The Future of Money: It’s Flexible, Frictionless and (Almost) Free (http://www.wired.com/magazine/2010/02/ff_futureofmoney).
Excerpt: This is the kind of revolutionary fervor that PayPal was always intended to foment. Peter Thiel, PayPal’s cofounder and a die-hard libertarian, launched the company as a means of creating a stateless monetary system, making it possible for anyone to switch, instantly and easily, between global currencies. “PayPal will give citizens worldwide more direct control over their currencies than they’ve ever had before,” he told new employees in 1999, according to the book The PayPal Wars. “It will be nearly impossible for corrupt governments to steal wealth from their people.”