Not exactly a cheat. A calculated risk. A friend of mine were having the storage discussion on phones and realized that phones never really experience a 'power outage' in normal use. People use their phones, they get low in power, and then they plug them in. Or the battery gets so low the phone shuts itself off in an orderly manner.

In the 'computer is a phone' perspective there is no sudden power loss unless the user yanks the battery out of the back. That is presumably a rare occurrence for your typical user. As a result, the big risk for phone file systms is that the phone crashes, but nearly every phone I've seen preserves memory contents as long as power is applied, so even a crashed phone, on reboot can pick apart the previous bits in memory and reconstruct what was going on before it crashed.

Given that fairly unique to phone criteria I could see nobarrier as a legit option.