Richard Land has come out strongly in opposition to the scheduled book-burning in Florida. You can read about it here.
i have to say i find it reprehensible as well. i remember a "book-burning" in Acts when people who had converted to Christianity from some sort of pagan-sorcery brought sacred-texts from their former religion to be burned. But that is hardly the same in character of what's going to happen on Saturday.
i just don't see any biblical warrant for this event. In fact, it seems to me if Islam truly is a frightening threat to the church, the Christian thing to do is pray and send missionaries into the most Islam-permeated parts of the world and infect it with the beliefs and practices taught by Christ.