Yes, it's still the same fmrx-enabler that was used on the N900 for FM radio from the beginning on. The difference is that Nokia is now using this package, too, so put it into their offical update repository.
Nokia probably built it from an unstable SVN version, though.

Besides an e-mail asking me as its author if it's OK to use it, I heard nothing of Nokia regarding this. No reply, nothing.
And apparently they didn't test the package much either.