While on a recent road trip my wife and I used her iPad2 and iPhone 4S plus my Droid Razr Maxx for basic internet access and for maps/directions. All used Verizon data plans, 3G for the iPhone and iPad, 4G for the Razr Maxx. My data usage for the Razr Maxx was very low - about .03 GB of my data plan's allotted 4 GB for the month. My wife's iPad used more than half of the allotted 2 GB for its data plan. Most of the iPad data use was probably for the maps app, obtaining routes and directions. We did not have the app running continuously - just checked and re-did the route directions every hour or so. Is there a fundamental difference in the way IOS and Android download and use data? For the few days during the trip that we were actually driving, I thought that the data use for the iPad was excessive. I tended to use the Razr Maxx phone a little more since it is a 4G device, but its data usage was much less. Any thoughts or suggestions on using your data allowance more efficiently, or thoughts on differences in data use by Android vs. IOS devices?