iPad and Venice

My wife and I were recently in Venice and brought our ipad and iphone. I had a number of Venice apps installed including the Ulmon Venice app. Venice is a maze. It is very easy to get turned around and lost. Paper maps are ok but this app was just wonderful in that it can pinpoint where you are on the map. Try that with a paper map. I kept the ipad (2) in my pack sack and left the app running. When we were a little lost, Id pull it out and it had our location, even the direction we were pointing! In the narrow canyons of streets in Venice, many only a few feet wide, this was really surprising and very welcome. Using this app we didnt have to follow the marked paths to tourist sites that were crowded with, wait for it, tourists. We took any path that looked interesting, and less crowded to get to our destination. Also the fact that it works offline is really great. I had the app on my iphone (4) as well but it couldnt find our location in offline mode. This could be an operator error though.
The only feature I would like to have had in the app would be a suggested path to your destination function.
Already downloaded the Paris app for our upcoming trip.

Mccannam about Venice Travel Guide and Map, v5.3