The Spychips Threat is in fact a Christianized version of its secular predecessor, Spychips: How Major Corporations and Government Plan to Track Your Every Move with RFID, which came out last fall.
Both books are published by the Christian publishing powerhouse Thomas Nelson. Both lay out the same totalitarian scenarios, based on documented plans by Philips, Procter and Gamble, Wal-Mart and other companies, along with the federal government, to track consumer goods and people individually.
Absent from the Christian version is the original foreword by the science fiction author and blogger Bruce Sterling. In its place, Albrecht and co-author Liz McIntyre have written an introduction that says that RFID chips, particularly the VeriChip subcutaneous implant designed for humans, bear an uncanny resemblance to "the mark" described in the Bible's Book of Revelation.