Can somebody tell me the differences in regards to the navigation between the z3 and d3? I know the d3 is discontinued, but I can still get one new and save about $400... and I plan on connecting an IPOD so having music on the hdd of the z3 i don't think is too big of an advantage, especially since i read that the hdd locks up on hot days..
so, advantages of the z3 in regards to navigation as well as anything else? (other than the larger screen). is navigation MUCH faster on the z3?
thanks for your replies...