Recently, Nevins and Myler (2014) have proposed an analysis of -ed adjectives of the type discussed here, where -ed adjectivizes categoryneutral √P, citing examples like *beautifulsinginged as an argument against the involvement of nominalizers.
their analysis has no way to account for the examples in (2) unless it is modified in such a way that -ed can also adjectivize nP, or alternatively, it is shown that the nominal bases in (2) are in fact √P, which is highly unlikely in face of the examples in (3).