Given the scope of what they are trying to accomplish and the fact that I've never worked on a project which was delivered on time and with all features complete, I'm pretty happy that the delay isn't longer! :)

And before that it was announced that general availability was going to be September 14th: https://letsencrypt.org/2015/06/16/lets-encrypt-launch-sched...

It's a shame they've pushed it back twice so far.