The syntax of the Australian Aboriginal language Warlpiri has led to t
wo opposing models of non-configurationality: a dual structure hypothe
sis, which abandons the projection principle for a grammatical archite
cture that separates constituency and functional representations (Simp
son 1983, 1991, Hale 1983, Kroeger 1993), and a pronominal argument hy
pothesis, which hypothesizes that bound or zero pronominals satisfy th
e projection principle in such languages, with free nominals analysed
as adjuncts (Jelinek 1984, Baker 1991, Hale 1993). Although the pronom
inal argument hypothesis is widely accepted in the syntactic literatur
e, we show that available evidence from Warlpiri, new evidence from th
e related language Jiwarli, and a survey of six other Australian langu
ages actually support the dual structure hypothesis. The non-configura
tionality characteristics of free word order, null anaphora, and split
NPs are in fact independent of each other and of the distribution of
bound pronouns. Additionally, the clitic pronouns that Jelinek (1984)
and others take to be the source of non-configurationality in Warlpiri
are simply an areal feature of Australian languages that is independe
nt of the syntactic properties that are supposed to derive from it.