+3. I'd love Mapsource for Mac....
I have an old Dell Laptop that died. I 'invested' 50$ in a replacement drive specifically to run Mapsource. I create all my routes in Mapsource and download to my GPS. I've been creating routes for 3 years now and I have to keep some sort of PC alive to use it.
A friend of mine uses PC emulation software in his mac with satisfactory results.
07 R12GS (Granite)