Tada! http://hackage.haskell.org/trac/ghc/ticket/4455

Thanks for the patch :)

On Fri, Oct 29, 2010 at 6:35 PM, Bas van Dijk <v.dijk.bas@gmail.com> wrote:
On Fri, Oct 29, 2010 at 10:11 PM, Daniel Peebles <pumpkingod@gmail.com> wrote:
> Hi all,
> Strangely enough, ST has a Functor and a Monad instance, but no Applicative
> instance (I guess it was pre-Applicative). I propose to add one. It doesn't
> seem very controversial, but I guess a normal discussion period for these
> proposals is two weeks?

+1

Don't forget to make a ticket so this is nor forgotten:

http://hackage.haskell.org/trac/ghc/newticket?type=proposal&component=libraries/base&milestone=Not+GHC

Bas