Already done.

http://code.haskell.org/~ross/transformers/dist/doc/html/transformers/Data-Functor-Identity.html

AFAIK, it'll tentatively go out Wednesday after I catch mtl up to working with transformers 0.4

-Edward


On Mon, Apr 28, 2014 at 4:03 PM, John Wiegley <johnw@newartisans.com> wrote:
I'm wondering if there is a reason why this is missing, but if not, I proposed
adding the following to Data.Functor.Identity.

    instance Show a => Show (Identity a) where
        show (Identity x) = "Identity " ++ show x

John
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