the dev cycle for a game is 12~24 months. The first Kickstarter breakthrough was Double Fine Adventure in Feb 2012. It's on track as most are per the article. It's too early to tell but I don't expect a higher failure rate than publisher backed games.I'll concede much, most creators were over-optimistic with their timelines.
Also, a lot of the ship-dates were based on the original funding goals. If you're planning to make a game with budget X, then fans throw budget 3*X at you and demand you produce something more epic in scope, it's only natural the development time becomes more epic to match.
