Use Linux!
My OSM experience started after I began studying possibilities of making a CarPC with the whole shebang. Including maps. Currently my CarPC is still looking for funds and some parts. As a step closer to it is an EEEPC with Debian testing (whatever it is at the moment). Have tried various software. Some more promising than usable, so I still test a lot of progs. Of course only GPL compatible. So, my EEEPC is often on top of my MX-3 dash. In summer it is rather unreadable. Often I have it in my backpack. It can run some 3 or even more than 4 hours when closed. So when I bicycle or paddle around with my feet, it is on my back. Currently I have tangogps in cooperation with gpsd and some python script to convert the tracklogs to .gpx format (and loose time and DOP information). Then the logs go in Merkaartor. And up to the cloud it goes. I never upload tracklogs, as I always map them myself, I remember more info to add, like bus stops, other ways when my speed was 0 and so. Have mapped Bauska and a bit around it. Few edits in Rīga, Liepāja and other places I am occasionally.
Of course, I am spreading the word about OSM. But as it seems to me, the usual person in Latvia is quite conservative and not open minded. Is opensource and the like only for openminded ones? Rhetorical question.