That is the way I normally use my GPSs- route the trip on a PC, then drop the route into a GPS. You do not need an expensive GPS to do this with either as almost all current and most previous model vehicle GPS devices accept routes.
Unfortunately I cannot address the IPad directly as I do not have one or use one. As I said, I use a PC and one of several software packages.
You basically need a vehicle GPS, a PC, a software package or an on- line program (readily available, and either free or very inexpensive) and a cable. That's it. Plan out the route, send it to the GPS, turn on the GPS (in GPS mode) and verifty the route on the GPS.
I personally use Microsoft Streets and Trips as my preferred software but it is unfortunately not without a few lumps. Then again, all the software packages that I know of have said lumps and basically you have to choose which ones you want to avoid the most.
A really slick part of doing this (laying out the route then sending it to a GPS) is that you can share the route with others. That too has its own lumps but they are not bad enough that it is not worthwhile to do anyway. The routes can be sent to others via e-mail or posted online to share them with others.
And by the way, laying out a long route on the GPS itself is HORRIBLE in my experience. The screen is too small and the resolution too low to do anything but frustrate yourself.
There is a lot of information on how to do this around, and if you want I can elaborate a bit on the specific method. Again, I cannot address how to do it with an Ipad though.
Brian
I haven't seen anyone talking about the software compatibility re: trip planning and then down loading the trip to the App. A friend has one of the near $1000 dedicated M/C GPS units and brags of his ability to plan a trip on his IPad, then download the trip plan into his GPS. I'd be interested in hearing more about this feature. My trip, still in the plans phase will start in Ontario Canada and take us out to Colorado, down through Utah and Arizona and back up through New Mexico and back home over about 3 1/2 weeks. It will be a complicated trip to plan out and the proper software will go a long way in making this an easier task.
Thank you for this input. It is much appreciated.
Dan