JTobias,
The KMD150 is not a panel mounted Skymap IIIC, a panel mounted Skymap IIIC is a Skymap IIIC with a panel mount kit.
The KMD150 is a Color Multifunction Display/GPS.
Anyway, I like the Skymap. True it doesn't have batteries (although a cigarette lighter power cable is supplied), but installed in the panel the size is a bonus. Easy to see and easy to push the buttons. It does have terrain and the speed of it is just fine. Support from the manufacturer has been great.
No complaints from me or anyone else who has flown my aircraft.
Here is a picture of the GPS showing Newfoundland on the Cessnas delivery flight to the UK....
