BlizzPlanet has announced that they will soon have an interview with the author of
I, Mengsk -
Graham Mcneill.

Blizzplanet will be interviewing Graham McNeill quietly soon concerning Starcraft: I, Mengsk - a new Starcraft novel to be published on December 30th, 2008. The front cover was created by artist Mark Gibbons, a friend of Grahman McNeill.
In addition,
Christie Golden completed her
Warcraft projects.
Karune clarifies the Warp Ray's attack mechanics:
Yes, the Warp Ray can fire while moving. Once it begins firing at a target, the Warp Ray will follow the target if it begins to move, keeping at a close proximity since the Warp Ray's range is currently quite short.
Karune also answers whether lifting a Barracks to escape from a Warp Ray is completely useless:
Pretty much, unless you can lure the Warp Ray into some anti air units/defenses faster.
Sources:Blizzplanet - StarCraft I, Mengsk - Front CoverBattle.net - Warp Rays move while firing?