New Garmin GPS 780

Maybe once the $2000.00 foldable cell phones hit the market a cell phone will provide a larger display.. But for now I don't know of a cell phone with a 7" screen like the Garmin mentioned above.
For the record I have no problem using my cell phone in GPS mode when not towing.
However when towing I prefer the larger screen and dedicated RV routing of the Garmin.