I now better understand your original comments. You are right about generic China manufacturer, and the firmware support, etc. I do like Garmin performance in North America for my use (except they are slow, or have very small screens), but don't have experience otherwise. I had tried Tom Tom some time back and found it friendly but without the map support Garmin has. It is good there is strong competition out there. That will only make things better.
Garmin, like a number of large companies are in it for the money, and if they can control the market, they expect profits......hmmmm..sounds like Apple .....
As I stated I am stuck with certain topographic maps, and if I could display them on faster devices it would help. Using them on a Windows laptop is great (but no gps on laptop). So the logical extension of that appeared to be these generic tablets with CE. The biggest complaint is the resolution, so if one zooms out on the topographics you lose the detail....it makes it difficult to map a path any distance due to the inability to "look ahead". Again, laptops using the software make that easy. The China devices have much higher resolution screens...so....
I will continue to look, and if anyone has comments to the original question on emulating the software on these devices it would be welcome.

Thx for the thoughts rik70!