Krein, just a quick note to say that the improvement to 3D views in the latest release are *fantastic*. Besides just looking cool, this will be a big help in my route planning.
I've just installed Vista SP1, and TopoFusion runs just fine. Actually, things seem a bit snappier in general than before. I'll let you know if I find any issues with the TF features I use.
While I'm thinking about it, I had been quite  interested in the Magellan Triton GPS series because one can import maps from NGS Topo. But from looking at the reviews I could find, it looks like Magellan really dropped the ball.
I've always liked Garmin units, and it seems to me that this leaves an opening for someone to figure out how to use raster maps like those created with TF in Garmin units. The vector topo maps that Garmin uses are nice, but I don't think they are worth that much for route finding in the mountains.
Larry