Once again I'm forced to echo far-trader. While I only skim-read this while at work, my impression is that it's yet another typically-great entry in the MJD Trav-fiction canon, and the novel as a whole will steamroll over the already-estimable Lisa Davies story-cycle.
I too didn't spot any errors (wasn't actually looking) but one bit stood out: calling the orbital artillery 'ortillery.' Is the 1) accepted lingo (from other Trav or sf sources), 2) an MJD neologism, or 3) a typo (doesn't seem too likely, O and A being awfully far apart on the keyboard)?
Anyhow, if the rest of the book lives up to the intro, I even more emphatically renew my offer to proof/review it, 'though I suspect there won't be a whole lot of actual proofing necessary.