NMEA GPS to on Uno to MegaHe

Using Arduino Project Guidance
#1

Hello,

I have a GPS connected to an arduino uno, It currently logs it current locations every 1.5 seconds on to an SD card. The GPS unit from the ladyada website

I wanted to know how would I send the NMEA GPS Data to the Arduino Mega, to be used for navigation, from the uno while still logging on the uno.

I know I have to use I2C but Im not sure as to how I would go about doing this. I managed to make i2c work by sending a signal to turn on the led on the other board.

#2

Why not just connect the GPS output over to the Mega, too? I'm pretty sure that the GPS output should be able to feed both the Uno and the Mega.

#3