SDMF_Reaps,

I have also heard that some of the early release bugs were addressed in a software update.  The turn-by-turn directions would be cool; especially if you could hear them in your helmet with the S10.  You must have purchased the City Navigator software separately; or did it come with it?  I'm not quite sure if I need to get the topo maps, I'm guessing not.  Thanks for the review, I think it is going to be the Monterra for me.