- You do? How? What data? Sorry, you've confused me.
You are suggesting nothing more than moving this backup out of your control and have it on some central server in Helsinki. Not that there is anything wrog with that per se, but it should not be compulsory.
[*]Making sure you have the same applications installed on two different devices. This is basically about the "centralized backup" as mentioned above. Well, I am the kind of a person who a) May want two devices with completely different application sets; b) Does not mind to install the same appliocation twice; c) Would be p!$$ed off if the device forced the same app sets on my two devices because I used the same account. As happened with Android: the same patch from Motorola was forced on another device in our household. Who cares that the other device was a Samsung? It used the same account
The transfer of intellectual property. This is the only case when "something" - not the application, but the right to install it - is associated with the person. An account does not entirely answer that if it can be shared but it is better than nothing. An account also does not help if the app developer wants you to buy a different license for each device, so the developers will just have to suck it and put up with Jolla's distribution scheme. Luckily (for Apple followers, that is) there is alraedy a precedence that people are used to.
Not unconditionally since, as I explained above, it also has its caveats.
It could work as a "convenience" for some but not for others.