He is a "Big Wheel " in Wesleyan circles. I know him from the Wesleyan site..
http://www.cresourcei.org/toc.html
Well, some Wesleyan circles. I am not familiar with him. But then I'm also not that familiar with the Nazarenes. I spent more time with UM, Free Methodist, C&MA, Salvation Army, etc. I went to a very Wesleyan school and we thought the Nazarenes were too strict.
So, like I said, not all Wesleyans are exactly alike.
Guess where I found this...
This brief study has demonstrated that openness theology is not a legitimate or necessary extension of historic Arminianism with which the Pentecostal tradition has many affinities. Neither is it reflective of the Calvinistic tradition nor a necessary response to that tradition.
The "Openness of God" From a Pentecostal Perspective
As an aside, this is also interesting given that Boyd is no longer at Bethel. You may already be familiar with this. here