  No. First, even though the psychological abilities and mechanisms  that Tomasello posits have been selected for linguistic functions,  these abilities and mechanisms have continued to be used (and,  plausibly, selected) for non-linguistic purposes, such as face  recognition, theory of mind, non-linguistic perception, etc. So,  whereas a central tenet of linguistic nativism is its insistence that the structures responsible for language learning are  task-specific, Tomasello sees those structures as being much more general-purpose. In addition, and this is a second reason not to count Tomasello as a nativist, the inborn structures he posits are  not plausibly interpreted as containing any kind of language specific information or representations. Yet a commitment to the role of  inborn, language-specific information (such as knowledge of UG) is  another hallmark of linguistic nativism.