bitcoin++ is really great! a good collection of focused people go to speak, present, hack and vibe. @niftynei's keynote from this April was certainly memorable, like a stamp in time. I am not a dev but I still get a lot of value out of it, and prefer this kind of independent event to the big corporate, conglomerate clout chasing whatever kinds of stuff. So many awesome projects have come out of btc++ as well as friendships that I cherish!