Titan Books’ Terminator Salvation prequel novel (see “Titan’s Terminator Tomes”) hit the New York Times mass market paperback bestseller list last week.  With a #27 rank the first week after release, Terminator Salvation:  From the Ashes may be a bellwether for interest in tie-in products for the new movie, which opens May 22nd (see “Best in Shows 2009, Part 1”).