The price is not bad, but I don't think I'd like the screen up there....:-)
Looks like from the drivers position it would cover a good portion of the field of vision in that direction.
Second is that some suction cup holding it onto the windshield or is it permanently attached ??
Lastly do you have a link where one could look at the options ??
For now I will stick with either using my PDA like Saldous or enjoing the detours ;-)