I'm not sure what's your age, but at a certain point in life, one should learn to speak for himself.
There's no need to complain using "we". That doesn't make your complain stronger or more urgent.
That said, my opinion is that you haven't backed Playdek to pretend, but to support. That's what Kickstarter is about.
When there will be an update, we'll get it. When will be the time to get involved, we'll get involved.
Meanwhile threatening of legal actions and complaining doesn't help anyone.
But this is just my opinion, you can still complain or bother Playdek giving them troubles they probably don't need to do their best (yes, when a development team read this kind of post from fans... they feel very bad).
But at least, do it on behalf of yourself only. Thank you