I agree that Haskell should provide this idiom. I find & to be a strange name for it, but to be honest, it's no stranger than $ so I say go for it. I would suggest | to mimic the unix pipe, but this obviously clashes with Haskell guard syntax. I think |> is a reasonable name, but Data.Sequence has already claimed it.

I also like |> for the color of this shed, as there's prior art for it.

> but Data.Sequence has already claimed it.

We should use namespaces for these things instead of trying to come up with globally unique names (be they symbols). Trying to be globally unique doesn't scale to large codebases and eventually gives =>@@@@#$>. ;)