I'm not an iOS developer, so I'm not really sure what parts of the insanely-verbose method calls are actually necessary.
It's called "Intention Revealing Names." Names are long to provide the programmer information, so shortening them would have a negative impact.
As an aside, I have Vim rigged up to do autocompletion with Ruby. I'm sure it would work with these Cocoa libraries as well
If someone writes the necessary plumbing.