Having a Congressman or Congresswoman in your pocket used to mean that they owed you a big political favor that you could call in at any time. Now with Congress+ for iPhone / iPod touch from Congress In Your Pocket, the phrase has an entirely different meaning.
Congress+ is designed for voters or political pros who need to have Congressional contact information at their fingertips. Not only does it have contact info, but also includes a biography, staff information, data on what committees the representative sits on, and political information including tracking polls and opponent information.
This version of the software includes yearly updates in 2009 and 2010, and sells for $9.99 in the App Store (click opens iTunes).