This was actually an enjoyable read. The best part for me was making good on the promise they made with BetaList, having successfully featured Pinterest, Mailbox, IFTTT, and so on.
6 karma · joined February 28, 2014
In his comment, he says: "OS X 10.9 (and probably also iOS 7) does certificate pinning for the push connection, I don't know about the directory lookup."
[1] http://blog.cryptographyengineering.com/2013/06/can-apple-re...
[2] https://github.com/meeee/pushproxy/blob/master/doc/apple-pus...