Overall, I I have pretty much come to the conclusion that the new Pioneer AVIC-N1 is the BEST all around package. it is DVD/CD/Navigation/MP3/Blah/Blah/Blah... touch screen, vehicle G-force, slope monitors, compass, etc... all kinds of stuff.
It is the only unit I believe that has a BUILT IN GPS navigation system. the other units like kenwood are the same price as the pioneer, but then you have to pay another 1800 just for the navigation unit!!! it is STUPID!
If interested, check it out on pioneers website. Let me know if you would like to purchase one- I am opening an account with pioneer soon, and I need to make a large buy-in. I will offer these units at very close to my cost for that order, just to get my buy-in way up. It looks like I will have 5-6 of the N1's on the order right now.