The Rev Klaas Hendrikse is a minister in the Dutch Protestant Church, and doesn't believe that God is a "thing" or a "being", but a word for human experience. While a lot of traditional believers will have some problems with this purely naturalistic view of Christianity, it strikes a major chord with the many Christians who have come to the realisation that God doesn't really exist in the sense we used to think.
Here is a BBC article on Rev Hendrikse and his church, while here is the Unitarian blogger @TimothyJMoore's take on the subject.
I suspect that there are many people within traditional "theist" congregations who share these views. Any thoughts?
