I have an Aspire One, with Street Atlas 2009 and it works just fine. I normally use a 12" Dell. That is my main computer, but I've been trying to use the Aspire One just for the decrease in size.
Anyway, I saved my Delorme Docs from my Dell, put them on the Aspire One, and had all my saved locations (customers) on the Aspire One.
The screen size is just fine for my aging eyes, and the Aspire One will even sit on the dashboard of my pickup. Very usable in busy traffic.
Regards,
Ron , Houston, TX