Can anybody recommend a CHEAP GPS DATA LOGGER, meaning it not only works real time but also can be taken by itself and log data, for later use with maemo mapper or google earth?

I think a GPS receiver would be great but a GPS Data logger would be way cool because i dont need to have my n800 with me. You can even use it to track movement from anywhere you put the gps on(ex: car) and later retrieve it. Am I right?