Dear G1g,
The simple answer is NO.....
In three solid years of searching, I have found no replacement.
Everything except CoPilot are on-line apps.
If you go the places we go (even carrying wire and a 3w repreater) on-line is off-line too much of the time to be counted on.
CoPilot will read your GPS and give you a "You are Here", and chart your progress along the laid out route. But I have not been able to get it to accept POI entries and project End of Day or recommend fuel stops. And those are the two things I valued most about SA. A one time cost of 20$ is supposed to get you continues upgrades of road data. I have not tried to transfer the plan to a stand-alone GPS - Yet.
An On-line that has promise is at
Furkot. This has a steep learning curve, and it is nearly as powerful as SA, but you have to dig through the help files as many of the best features are almost easter eggs.
RV Trip Planner is only good if you want to stop at places that they recommend. It is 40$ to find out what it can do.
As I sit at my keyboard, I am trying to remember all that I have investigated. I should have made notes. There are more than a few, but that On-line thing is an instant killer for us.
I have badgered both Garmin and Google about this, but I fear that they do not see any market potential here. I find that kind of a surprise with the RV market as big as it is.
If you should happen to discover something, please come back here and tell us.
Matt
If you should discover an actual