The book is supposedly out (I have no idea where, but most probably in the US at some stores) and PrimarchX over at the dakkadakka.com forums was kind enough to post the table of contents. So without further ado, here it is:
Daemon Hunter Table of Contents
Chapter I - The Ordo Malleus
The Enemy Beyond
Origins
The Calixian Malleus
The Masters in Council
Holdings
Scholariate at Arms
The Roots of the Scholariate at Arms
Structure
Calixian Incursions
The Bloodwrath Incident
The Fall of the House of Ios
The Protasian Breach
The Purging of Camp 109
Acolytes of the Ordo Malleus
Extreme Measures
Chapter II - Hunter Careers
Ordo Malleus Background Packages
Corporeal Sanctification
Daemonic Vanquisher
Fate-eater
Host-Bound
Orod Maleus Career Ranks
Agent of Reliquary 26
Banisher
Cult-Stalker
Daemonym Seeker
Ordo Sicarius Initiate
Pyroclast
Techsorcist
Theomancer
Ordo Malleus Cell Directives
Using Cell Directives
Cell Directives Format
Carta Extremis Hunters
Reliquary Retrieval Strike Team
Scholariate Fatestalkers
Ordo Malleus Retinue
Chapter III - Malleus Armoury
Ranged Weapons
Melee Weapons
Armour
Force Fields
Field Rules
Gear, Tools, Drugs and Ammunition
Anointed Weapons
Creating Anointed Weapons
Chapter IV - Daemonic Incursions
The Nature of Daemons
Role Playing Daemonic Threats
Daemonic Entity Creation
The Ruinous Powers
Gifts of the Ruinous Powers
Slaanesh
Nurgle
Khorne
Tzeench
Daemonic Beastiary
Daemonic Weapons
Chapter V - Grey Knights
Grey Knights in Your Campaign
Origin of the Grey Knights
Grey Knights in the Calixis Sector
Grey Knights in Dark Heresy
Creating a Grey Knight Character
Grey Knight Advancements
Space Marine Implants
General Grey Knight Career
Grey Knight Career Advances
Grey Knight Psychic Advances
Grey Knight Specializations
Strike Squad Grey Knight
Purgation Squad Grey Knight
Grey Knight Purifier
Grey Knight Psychic Discripline
Grey Knight Wargear
Rare and Precious
Nemesis Force Weapons
Armour
Other Equipment
Grey Knights in Campaigns
Character Strength
Interludes
Grey Knight Ascension Campaigns
Daemon Record Sheet
Also, if you've got it, then it's first impressions/at a glance review time!