There are a few features about the Pioneer AVIC-F90BT nav/audio unit that I didn't mention - mainly because I probably won't be using them much.

Instead of just a CD player, it will also play DVD's! And, it even has connections for backseat screens. I really don't see myself using that feature, especially since there's not a lot of room in the backseat.

The iPod adapter connects to a USB cable, so you can also play music and movie files from a USB thumb drive. Not to mention, it has an SD card slot on the face of the unit. This can be used not only for playing music and movie files, but Pioneer provides map and firmware updates on SD cards. AND, there is an application called AVIC Feed that can be installed on your home PC and used to edit Points-Of-Interest, add pictures for the splash screen (displays when the unit is booting up) and then export them to an SD card or USB thumb drive and then to the unit.