An anonymous reader writes from a report via PC Magazine: Comcast is now offering Chicagoans gigabit internet speeds. PC Magazine reports: "Launched on Wednesday, the program uses DOCSIS 3.1 technology to deliver speeds up to 1Gbps over existing network infrastructure. DOCSIS 3.1 runs through standard cable connections already in place at your home or office. So Xfinity and Comcast Business Internet customers can simply sign up for a plan and plug in a new modem; no fiber installation required. The service, according to Comcast, allows you to download a 5GB HD movie in 40 seconds, a 60MB TV episode in four seconds, a 150MB music album in two seconds, or a 15GB video game in two minutes. Initial users have the choice of a promotional contract price of $70 per month for 36 months, or $139.95 per month (plus tax and fees) with no contract."