[hyperberry]

Thanks for your feedback. Great point about signatures; yes - the signature of a certified Airframe & Powerplant ("A&P") mechanic is required for maintenance entries. We foresee implementing a feature for collecting, and validating, electronic signatures.

In terms of retroactive conversion, you're absolutely right most aircraft in service now are generally decades old - and are going to have historical paper records. We have considered several novel approaches that would allow aircraft owners to electronically archive their existing paper logbooks (and maintain historical records alongside the newer all-digital records for user convenience).