iOS4 alternatives for dismissViewControllerAnimated:completion:
Two light suggestions:


disappear has one s and two ps.
the word "block" to describe a block is accurate but not very descriptive. OK, so I need to pass a block, but I can see that from the parameter list. What the block is for should be explained in the method name: this is why Apple often uses phrases like "completion handler" or "comparator" to describe block parameters.