I got this idea off Joey-Bike of NOLA took it a little further to include it in my blog.

Hardware
VholdR
HTC My Touch (AndroidOS)

SOftware
instamapper GPS Track
wordpress with XML Google Map Plugin

Results

Cool. Now try this: on the first-person view video, create an overlay with a map, including a moving dot that represents the bicycle. That would be cool.

Yeah I should try that, Like a picture in picture would be killer. I will look into that :-)