Essentially it means you have to have access at some point to high speed internet, but once you have that, you can send it along to your house, work, backyard shed, HoleTM (as seen in the BYOH thread) or whatever, IF you can buy a line from your local phone company.
It DOES sound interesting, but there's WAAAAAY more work that will go into this than it looks, and someone, somewhere, STILL has to be paying for the internet service you'll be spreading around like Robin Hood (or just stealing to make your home connection fast).