ack in time from 2006 to 1956. What mistakes would we make? How would we act if we expected doors to open as we approached or faucets to run automatically and toilets to self-flush? And what would people think of our odd behavior as we walked into doors, expecting them to swing open? Now, go into the future and go back again from 2056 to 2006. What mistakes would we make? Imagine trying to talk to all the appliances and no one is listen- ing. Or waiting for a room to recognize you and adjust to your personal configura- tion in terms of temperature, lighting, music, ambiance, and SO on. And what would we think of their odd behavior?" If you really want to play this game well, when thinking of 2056, remember the things we talked about in understanding the broadband evolution-all the significant and dramatic developments in intelligent wearables, embedded devices, teleimmersion, virtual reality, and SO forth-and make use of that in playing this game with your colleagues. The following sections describe some of the new Internet projects under way, including the Next-Generation Internet (NGI); other Next-Generation internets (NGis), such as the Interplanetary Internet; Internet-enabled devices; RFID appli- cations; Session Initiation Protocol (SIP) telephony; digital objects and libraries; and the Semantic Web. The Next-Generation Internet Next-Generation internet (NGi) is a term used by governments, corporations, and educators to describe the future network and the work under way to develop it. This Internet will be so pervasive, reliable, and transparent that we'll all just take it for granted. It will be a seamless part of life-like electricity or plumbing. Chapter 8 The Internet and IP Infrastructures Current NGi projects include Internet 2 (www.internet2.edu), Abilene, Hybrid Optical Packet Infrastructure (HOPI; http://networks.internet2.edu/hopi), National LambdaRail (NLR; www.nlr.net), Global Lambda Integrated Facility (GLIF; WWW. glif.is), Manhattan Landing Exchange Point (MAN LAN; http://networks.internet2. e