Wired has an AP article on something most people already knew--the amount of people who have had enough of landlines. According to the article, there are "as many as 7.5 million Americans who have "cut the cord" and gone solo with their cells."
Interestly enough cell phones already compose of 43% of all phones in the US... With landlines dropping in numbers (down 5 million in the last 3 years), it's just a matter of time before we're all going to be wireless.