My next thought is, are the routes stored on the SD card and if so why not just have a library of SD cards with all your routes. <unlimited routes> IMO I am liking the 660.
Dave,
If it works the same as the present Garmins, you could store routes on the SD card but they cannot be accessed by the GPS software from there. They would be in an "inactive storage" mode, so to speak. Only the routes that are in the GPS'es memory are accessible. But you might be able to put some routes on the SD card and then "import" them as needed. Of course you'd have to delete some routes from memory before importing new ones. That could be a viable workaround for this 10 route limit issue. Good thinking!
How do you get the list of directions?
Just press the green stripe running across the top of the screen when in mapview.
Now what is this "chunking" you guys are talking about? I have had a SP C550 and SP 2820 and can't quite figure out what you are talking about. Are you talking about how sometimes the directions will inform you to stay on the route you are already on? That does mess up the distance between turns because when it tells you to "stay left to continue on route XXX" it considers that a "turn", but it has never steered me off course (that way).