Pebble also introduced new OS, own one, that they develop. With new SDK and even after introduced new watch(round one).
And if Jolla only software company(btw why update 2.0 came later if so) why they produced the tablet.
they failed at large with dates, delays, communication about it.
Updates after months of delay and silence do not really count
Revolution is not about UI, buttons or swipe, but about UX, and while with N9 and even with Blackberry10 i felt natural with all gestures, with Jolla you need to learn and get used (if you explain UX it's wrong UX).
You remember you are talking about some standard chinese tablet with some modifications(search this thread for links of found "brothers" of Jolla tablet)