I only did it because it was so cheap for an introductory price for the first quarter....plus it's still $15 a month cheaper than cable after that. I really don't know how it works. This is what the site says. (I got the offer in the mail)
Clearwire uses a state-of-the-art wireless modem that can be plugged into a desktop computer, a laptop, or a local network. It operates by transmitting signals to and from nearby cellular towers instead of using a traditional phone line. That means you can set up the modem anywhere in your home or office ââ¬â upstairs or downstairs, inside or outside. Plus, your Clearwire connection is always-on, always-secure.
Link:
http://www.clearwire.com/company/
Where I live (Jacksonville, FL) is one of the four cities it's offered in. It has a thin black thing about the size of a med. notepad with color rings across the top.