It sounds interesting but I wonder about the focus only on Iran, while other countries notoriously suffer from censorship too. (China, North Korea…) Also, from

It sounds interesting but I wonder about the focus only on Iran, while other countries notoriously suffer from censorship too. (China, North Korea…) Also, from the FAQ: 7. Is Haystack Open Source Software? No. Although we sincerely wish we could release Haystack under a free software license, revealing the source code at this time would only aide the authorities in blocking Haystack. In the future, however, we would like to find a way to reconcile our Free Software ideals with the necessity of frustrating the efforts of those who would block Haystack. They sound sincere and it seems that they've really thought about that aspect but it seems to me that by being closed-source, users have to trust that their intentions are good (looks like it's the case, but who knows?), but also that they know what they're doing and that connections are indeed undetectable. I'm not saying that's not the case, but I feel like the target users are exactly the ones who can't be as willy-nilly as many are with Facebook for example.