iPhone 5 with skydemon.
Only last week I heard a locally based pilot, on the RT, en-route to another, often visited airfield, barely 10nm away, declare that his GPS had stopped working and that he was unable to continue. Then a few seconds later admit that he didn't know where he was!
Time he hung up his flying boots then. My GPS went out of the window literally in May. Grabbed the map (marked up) off the back seat and carried on to destination. Had meal with companion at local pub and flew back home with map and stopwatch, no issues at all. GPS is great but it isnt a substitute for basic navigation skills.