Every several years there is a seismic shift in telecommunications architectures and platforms. When a fundamentally new architecture is introduced - it changes everything: from system implementations, to protocols, to operational systems. We are currently at an unusual time where there is fundamental change underway in several different places in the network simultaneously. This promises an exciting set of new services, and substantial cost savings for customers. This talk will review several of these changes, including: Carrier Grade Voice over IP architecture, blended lifestyle services through IMS, optical, wireless, fiber to the home, the impact of Open Source, and Nanotechnology.