Kickstarter is a strange monster, and truly, I believe it is %100 luck based.
We're at $660/$15,000 raised, but it was all in the first day and then it just stopped.
So, who knows! I just read in Kickstarter's 7 tips for spreading the word that one of their tips was Skywriting. So, clearly, nobody knows.
Good luck!
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Check out Summary on Kickstarter:
http://kck.st/1L0ipBi