Even though I know he no longer holds his Christian believe, but I think Bart Ehrman's books are very important to be part of the Logos resource library, as he is one of the most quoted scholar reference by atheists, as well as the leading NT textual criticism scholar in the world (he did study under Bruce Metzger)
We should recognise his hard work in his field as well as to study what he wrote in order to rebuke and defend our believes.
Currently all his books are available under Amazon's kindle (including his more formal writings published by the Oxford University Press), but it lack the cross reference/dictionary in the Logos engine, so its hard for some of us who would like to go deeper, the other thing is all koine greek and coptic used in the kindle are treated as image rather than text font, so you can just select a potion of the text, and you can't look up the individual greek/coptic word.
