I run them both at the same time on my N800... I use Hybrid VE maps in M/M and run at zoom level 5. It looks like I'm flying over the ground at an altitude of about 1200 ft. I then fire up Wayfinder and punch in my route and just minimize it. I then bring M/M back up in full screen mode and have the best of both worlds... satellite imagery with nice voice guidance. I use Nutter's Maemo Mapper Mod with M/M 2.2 so I can have 4 gig of maps stored on my removable memory card and I keep Wayfinder on my internal card. That way I only need to connect to the net if I want to stop and drill down the zoom. Auto rotate and pan work flawlessly and the only performance hit can be seen in the lead amount. Without Wayfinder I set my position to the lower fifth of the M/M screen. However, when I fire up Wayfinder in the background the lead jumps up to 2/3rds of the screen... I think it is a small price to pay for a good navigator that shows real imagery instead of line drawings.