At the time, I was flying an airplane that only had the iPad for charts and carried one set of expired paper sectional charts and had a handheld aviation GPS.
I have since upgraded to an airplane with glass avionics and onboard charts and plates. Now, I have the onboard materials plus my iPhone also has the charts on it.
For visual flight, it wouldn't be that hard to navigate by looking outside the window. For instrument flight (or visual flight if needed), it would be easy enough to ask ATC for the assistance you needed.
I have since upgraded to an airplane with glass avionics and onboard charts and plates. Now, I have the onboard materials plus my iPhone also has the charts on it.
For visual flight, it wouldn't be that hard to navigate by looking outside the window. For instrument flight (or visual flight if needed), it would be easy enough to ask ATC for the assistance you needed.