I think after a full refund, your commentary should discontinue. Why? Because this continuance is solely on your decision to do so. They failed, you've continued on ad infinitum and let's be honest. A full apology and refund won't be enough to make you happy. Conversely, I'm led to believe that having the tablet would not have made you happy either. It's a no-win situation with you. Next time, I suggest that you just don't participate especially if you are unwilling to accept the risks associated with crowdfunding and startups (double jeopardy).
Speculation