In the words of the Catholic Archbishop of Melbourne, this book "presents Christ, the Trinity and Redemption in terms which can not be reconciled with the doctrine of the [Catholic] Church."
I received the book as a gift and, from the beginning of reading it, was suspicious of its content; the author and the publisher take great pains to hide the direction of the author's argument. Essentially, this now ex-priest attempts to disprove Original Sin, the divinity of Jesus and his redemptive mission, and the doctrine of the Trinity. These ideas must, according to Mr. Morwood's logic, be disregarded because these ideas can not coexist with the modern mind, and in particular with modern cosmology and contemporary Biblical scholarship.
It is clear from reading this book that the author does not have a clear grasp of his subject matter. He presents the teachings of the Church in an overly simplistic and oftentimes incorrect manner; then he provides pages of self-contradictory arguments for his enlightened, "modern" viewpoint. As I understand it, he believes in some vague, pantheistic spirituality in which God is good and is in everything, and Jesus lived a very Godly life that we should emulate. There is no Original Sin (as disproved somehow--he doesn't say how--by evolution and cosmology) and thus no need for redemption, and thus no need for a redeemer. However, and here I agree with one of the other reviewers, Mr. Morwood presents no cohesive arguments; he presents a jumble of half-baked ideas that he doesn't seem to have fleshed out. If you want to dispute Catholic teaching, there are better books with more integrity and internal consistency. Tomorrow's Catholic seems most like an attempt to justify some type of vague spirituality without any firm doctrine, which is of course not Catholic, and not coincidentally this vague spirituality lets the individual ultimately do whatever he wants as long as he feels it is good, e.g., contraception, sex outside the marriage of a man and a woman, abortion, etc. He doesn't explicitly state that these types of behaviors are permitted in his theology, but it certainly is the implication.
Clearly, the title of the book is a misnomer. Someone who attains to the beliefs in this book may be tomorrow's something, and it's not clear from the book exactly what that something is, but one thing he would definitely not be is tomorrow's Catholic. Anything but.
The idea that the church is moving into a different epoch is a true one. My feeling is that the Church will come to grips with certain scientific ideas to broaden its mission. This book was good at describing some of those ideas BUT was not in any way original. I wouldn't call it trash, but I would say that I am glad I read Hans Kung and other theologians for their original content.