I would just install the GPE suite apps like normal (I suggest the file manager too, doubt this essential though). When I tried before (months ago) I ran into issues with dependencies, so if this happens, search around and make sure you have the right repos added. Otherwise, should work and if not, Graham Cobb will respond to emails.

Macuco does look good, except I don't normally use my N800 for directions since it doesn't have a GPS. Thanks anyways.