The cap will be set at 250gb. If you go over that, you get a courtesy call from Comcast as a first warning. The second time that you go over, your account will be immediately suspended for an entire calendar year. People that watch movies or video's online are going to be hit hard because you can go over your daily limit in minutes.

And don't forget that companies like Apple, Google, Microsoft and others are offering online (cloud) storage. Some applications such as Google's http://docs.google.com/ are online and would be completely inaccessible to small business's or home offices.

Plus there are X-box, Playstation, Nintendo and many other consumer boxes that require the internet to access online games, calenders, address books, and even clocks.