Personally I dislike the idea... For me being gay is not a religion it's just part of who I am, the bible is christianity's holy book, not the guide to straight life. Maybe I'm wrong but I think it would affend a lot of people, gay people included, and that is certainly not the way for gay people to be accepted, in my humble opinion anyway. I assume you were talking about a 'gay bible'?
The bible itself isn't prejudiced, it is the people who interpret it who have an issue. Leviticus is a bit out of date...but people ignore all of it except the "anti-gay" bit anyways...
