As for GPS capability....For years, I always used Google Maps on my smart phone, starting with my Blackberry. Even after I bought my iphones --- the latest being iphone% ---- I still downloaded google maps and used that...never Apple's version. So I was never without that app.
Now, with the Supraekey, I can use it with both the iphone and the ipad at the same time, as long as each device has a different activation code for the ekey.
When you make an app for an Apple device, you have to make 2 - one for the phone, one for the iPad (and perhaps now one for the mini... not sure)
Apple has many, many more apps and is more secure. Go with Apple.
B&B Realty Group - Keller Williams Elite Dallas TX