I'm still having issues with making files appear on my screen. It seems to be an problem with XQuartz X11 working incorrectly on the Mac. You're not having this problem Jim? I can create a new flie, but whenever I try to open an existing SVG file, it does not appear on the screen. The Finder says it's open, but it is nowhere to be seen.
But anyway, I'm pretty happy with using OpenOffice Draw for my maps. The one pet peeve I have with Draw is the way it handles layers. To toggle a layer's visibility or locked status you have to double-click the layer's tab, and then change the status of a checkbox. I would very much prefer a separate dialogue that lists all the layers with checkboxes for each for visibility, locking, etc.
Does Inkscape have something like the above for manipulating layers? If it does I might continue to pursue getting it to work correctly.