All we can do is wait.
But wait for how long?
Wyldwabyt has a valid point, and this project feels like it is never going to see completion.
Is there anyone among those of us who invested money with the knowledge/ability to start a class action lawsuit?
All I'm aware of is pretty much everyone that's invested money has sent KS a "Report this project to Kickstarter." With regards to wait time, he has up to five years from the date the KS funded to give us what we paid for. Even if he said tomorrow it was guaranteed to be released and shipped, he couldn't be help accountable because of the five year grace period. This means 2018 before legally anyone can really do anything.
As for opening a lawsuit, should the time come, the rules of KS dictate that you should open a support ticket first before taking things to court. If you do not, then "You agree that any action at law or in equity arising out of or relating to these Terms, or your use or non-use of Kickstarter, shall be filed only in the state or federal courts located in New York County in the State of New York, and you hereby consent and submit to the personal jurisdiction of these courts for the purposes of litigating any such action. You hereby irrevocably waive any right you may have to trial by jury in any dispute, action, or proceeding."
I would suggest the support ticket first.