I have a feature suggestion.
Auto Lock is great concept, however I don't use it as I fear myself or a family member being locked out of the house. I do know I can change the timing, however if I take the rubbish out and get distracted talking to a neighbour without taking my phone....then I'm out in the cold.
Would it be possible to implement a 'manual auto lock' feature?
For example, twisting the sesame through a quick unlock-lock-unlock.
Then the sesame would know I'm heading out and can lock it with the specified delay.
(Perhaps your V2 product could have a physical button to trigger the auto lock also)