I find I am using AssociationMap more and more.
It would be nice to have an equivalent to Map's /@ key-sequence.
For example, suppose <@ could be the sequence for AssociationMap, then we would have:
Sin[Pi/#]&<@Range[10]
would give:
<|1 -> 0, 2 -> 1, 3 -> Sqrt[3]/2, 4 -> 1/Sqrt[2]|>
Although, perhaps this creates unreadable code for distribution.