Unfortunately Topo Charts did not make it into the new 9.4 Release. They are still on the development plans and I'm currently researching some options. Again, this is a feature we want to add. There are many options for Topo Maps, maybe some could post what they use in Alaska, US, Canada, etc. I know DeLorme, and ArcGIS offer some pretty impressive products.
Are most interested in the Topo Contour lines only or the river/creek names, cities, peak altitudes, parks, roads, road names, etc? I could see all the above as layers, but trying to isolate the most important for frequent mountain flyers. I'd think Topo lines, river/creeks w/ names, cities, road w/names, would be most critical.