2008/12/22 Luke Palmer <lrpalmer@gmail.com>:

> Yeah, it'd be useful. Doesn't really matter, though, because it's on
> Hackage (http://hackage.haskell.org), so it's just a cabal install
> MaybeT away.
> Now that cabal and cabal-install are reasonably mature, we really don't have
> to worry about what's blessed as "standard" anymore. :-)

Although I still had to use my own because I wanted a MonadPlus
instance. I would offer a patch, but since there's more than one
useful MonadPlus instance for MaybeT it probably still wouldn't be
right for everyone.

There are? The only two I can think of are the left-biased and its dual, in which case the convention is to choose the left-biased one. Is there another?

Luke