thanks for the response: 
07:06:37 #info Thank you PeegeeTips for your suggestion / idea. Current one-time-fee
07:06:37 #info licenses you can find from shop.jolla.com. For new supported Sony models
07:06:37 #info we will also have one-time-fee license (perpetual) but pricing is not
07:06:37 #info yet settled. One-time-fee license would still be bound to a device.
07:06:37 #info Thus, a joint license is not likely an option.