Jolla used the crowd-funding campaign to butter up VCs for their next funding round [3] and then decided the Asian LLC handling the crowdfunding would go bankrupt, leaving backers with no tablets and most with no refund. [4]
The real kicker was that the tablets were ALREADY manufactured by their ODM, Jolla just never paid them. Took backers money and stiffed their manufacturing partner too. For a while after the campaign folded you could buy Jolla branded tablets (running Android, it was just an ODM model they flashed Sailfish on) on eBay or Taobao [5]. I just checked and there's a Jolla Tablet listed on eBay right now. [6]
10 years later, it looks like they're trying the same thing. Maybe they think the internet has forgotten, but I have zero interest in supporting their next hardware rug-pull endeavour.
[1] https://together.jolla.com/question/97695/information-regard...
[2] https://www.indiegogo.com/en/projects/jolla/jolla-tablet-wor...
[3] https://jolla.com/content/uploads/2017/02/46_JOLLATABLET_STR...
[4] https://blog.jolla.com/second_phase_refund/
[5] https://old.reddit.com/r/Jolla/comments/3x2s7e/jolla_tablets...
Or it might have just been their excuse back then - if you have some newer details of how it actually all went down with the tablet, please do share! :-)