I called navtool, and despite their site saying it works for the 09-10 model 370z, it only works for the 2009. The guy said they are working on a fix so it will work for the 2010. He said to call back in a month or two. If i find out anything else i'll let you guys know.
Thanks for putting this write up... up. it was very helpful and i plan to use it once i get my Z and my navtool
