I would not use the wording some others did, but i also am disappointed. The focus on additional funding which appeared over the time was not perceived from the initial project brief.
Clang has a great vision. Such visions can fail. But that would not create any disappointment from my side. That is the purpose of Kickstarter: to fund risky projects. My disappointment was created by what i perceived a creeping change of the project direction: from a game production into creating a startup company. The second i would have never backed via Kickstarter.
Getting funds from investors is (i know this very well from my own experiences) a very expensive business. I would ask Subutai here to create some transparency on how the Kickstarter funds were allocated. IMHO those funds were earmarked for the software R&D (and overhead) but not funding aquisition or marketing.
I ask for this because the state of the demo (from my perspective) does not reflect an investment of roughly 450K$. Other projects achieved much more output with a small percentile of the funding Clang has received. The demo resembles something cobbled together in a hurry and with little effort.
It may be, that i am overly critical and unfair. But after backing 60+ projects, Clang is the one where my expectations and the visible results differ the most. I have no idea where the money (of which i provided only a very small part) went.