Bought the GDL3204 GPS data logger from Sparc Systems Ltd, Mumbai, India for INR 7500 (taxes and shipping charges additional). They use gEDA (GPL Electronic Design Automation) and Printed Circuit Board (PCB) for their work, and I thought I should support them by buying a unit.

GLD3204 GPS data logger

It has a serial interface to connect to a computer, and can store 74000 track points on a 4MB non-volatile memory. It can be used for openstreetmap work. You can use the sparcy (command line tool) with it from Fedora.

~~~~ {.shell} # yum install sparcy ~~~~