One of the more innovative companies in existence these days is GrandCentral - a company that seeks to allow individuals to keep one phone number for life. This number can ring a variety of different numbers - all at the same time and is highly customizable (e.g. pass the annoying telemarketers directly to voice mail). Google recently acquired GrandCentral - something which is highly encouraging, as while GrandCentral was free in its beta stages, many of the better features were expected to go premium when the full version was released. With the acquisition by Google I expect the application to be developed at a more rapid pace, to be more widely accepted (no one worries Google is going under, like a startup), and to stay free - forever (probably advertising supported).