Someone once posted a joke "mod" made by glueing two partially functional N900s together. Despite an extensive search I could not find the link. The search facility on TMO sucks big time. It cannot search for words shorter than 4 characters (so "CPU" or "duo" are out) and limits the results to 12 pages so hoping to find the wanted thread manually in the search results is often doomed to failure too. I was hoping the original poster of said thread would speak up but he has probably not seen you post.