I read a CNN Money article which said suspect suicide (with confirmation from coronar coming later). If I am incorrect I will edit my post and apologise.
I'm not disputing that it was suicide. I'm pointing out that your claim as to why he committed suicide -- an "inability to deliver on the kickstarted campaign" -- is pure conjecture.
Articles: http://money.cnn.com/2011/11/14/technology/diaspora_cofounde... http://www.ibtimes.com/articles/249210/20111114/ilya-zhitomi...
Edit: "The San Francisco Office of the Medical Examiner formally ruled the death a suicide last month." - http://www.businessweek.com/articles/2012-05-10/on-diasporas...