GPS software Help

Hello again, dear community.

I do not stop a series of sore questions to the professionals and simply to those "who have come across this and can share."

And I wanted to ask this:
')
What software would you recommend for traveling on GPS. Those. (there is ASUS A636N, pda), I use otudava "Autosatellite". The program is wonderful, but now the question has arisen whether there is such software for Mac OS (with detailed maps of Russia and laying a route), or for Windows (or Ubuntu).

In general: who faced, write about vserazlichnym navigation software, under Windows / Ubuntu / MacOS.

I think many will be nice and interesting.