[wyager]

#4 is hard thanks to the relatively strong crypto iMessage seems to use. Hopefully Apple can work out the kinks, though.

#20 is hard because of how instrumental the lockscreen is to certain core functionality, including full-filesystem encryption. Apple would have to define a funky lockscreen API, and it would be really difficult to ensure that any given custom lockscreen didn't seriously impair device security (e.g. by returning a low-entropy key).

#36 sounds unappealing to me. I don't want more social networking fads cluttering up my mobile OS.

#46 kind of misses the point of Air Drop. We have dozens of easy-to-use and robust remote filesharing solutions. Air Drop only simplifies the act of creating a WLAN.

There are some good points here, but a lot of this kind of just seems like a Christmas list for the Apple Santa.