Erudite Journals: Yet another predatory journal strategy

I just got an email invitation to publish in the Erudite Journal of Microbiology and Biodiversity.  This is a group; they list ten other Erudite journals.

Their publication fee is only $300, but they offer a special Language-Editing service for authors.  For $150, they will edit your manuscript's writing (though not the equations), independent of its length, with a turnaround time of one week.  After the editing is done you can decide whether to proceed with the submission. 

At first I wondered whether I might be unfair in treating Erudite Journals as predatory.  Maybe the publishers genuinely want to help researchers from non-English speaking countries publish their work.  However, the Erudite Journal of Microbiology and Biodiversity has no Editor, and its archive has no papers.  Neither does the Erudite Journal of Biotechnology, though it does claim that a first issue is coming soon (hopefully not before they find an Editor).  Neither does the Erudite Journal of Law and Jurisprudence, or most of their other journals.  The Erudite Journal of Business Administration does have an Editor, as do a couple of others, but the Erudite Journal of Social Science Research appears to be edited by a page full of advertisements.

Note added Sept. 24, 2013:  I got another email, "Introducing Erudite Journals".  Still no papers in the Erudite Journal of  Microbiology and Biodiversity or the Erudite Journal of Law and Jurisprudence, but there's one in the Erudite Journal of Biotechnology!  I don't see how they can possibly be making enough money to even pay for their website and spam.