Duemilanove - serial communication pins 1 and 0

Hi all I'm trying to interface embedded linux board with my arduino. All i'm doing is sending data with

 Serial.write("speed is ");

over and over again, every second. I can read that through USB virtual port just fine, but when i connect my other serial port to digital pin 1 tx (i only need to read, so no rx pin) and ground i receive unreadable characters. tried this on both windows and linux, same thing. How can i read serial data from pin 1? Thanks!

oops.. found an answer - http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1171063406/3#3

Disregard this question