HP-41 GPS Module - True or fiction?

[MeindertKuipers]

This project was done as part of a design challenge, and all information is online:
http://circuitcellar.com/contests/nxpmbe...DE3668.htm
I won a little pat on the shoulder with it, and the amount of software was really not too bad, thanks to the various libraries that were available.

For handling the file system, USB and network I do not think it is an option to work without a microcontroller, and if power is a concern, it can be switched off when not needed.