] When tracking this year's election, pollsters contact
] people on traditional phones. About 5 percent of all
] households receive telephone service only by cellular
] phone, according to a face-to-face survey done earlier
] this year by the Census Bureau and the Bureau of Labor
] Statistics. Among young adults up to age 24, the number
] is close to three times as high.

This is a good point. Most of the people I know are definate voters and, if they even have a landline, won't answer it. This bias -- like the flexibility in what percent of Republicans you query (lower percent vote) means that we are unlikely to be seeing accurate numbers in the polls...

But we knew that.