I own a Jolla, I currenty use it as my primary phone and the real game-changer here may be that it actually runs Android apps without any signficant problems (so far :-)) even at this early stage (Angry Birds and Skype in my case, which seems me like quite challenging apps to emulate, Skype video calls, for example works).

For me this seems to invalidate the ecosystem concept underlying for example the Nokia switch to Microsoft and making Jolla and other smaller phone makers' chances of success a lot bigger.