This debate is at about round 4 now. Scalia/Garner argue for textual originalism and Posner calls their adherence to it a bunch of waffling (and no, that is not a quote).
Round 1: Antonin Scalia and Bryan A. Garner, Reading Law: The Interpretation of Legal Texts (Thomson/West), June 19, 2012
Round 3: Justice Scalia’s response, see Reuters report here, Sep. 18, 2012
Not exactly MilJus, but a lot of fun to read.