This was my first time going to http://360idev.com and can say that I thoroughly enjoyed it. It was much different than WWDC (which I went to in June).
I just saw this post covering the conference:
Of the sessions the blogger mentions I also went to the session on iOS Security by Jay Freeman and can attest that it was excellent. I also wanted to attend the session by Gustavo Ambrozio but was in a Core Bluetooth session at the same time.