If you have time for only one link, check out the official research project page from Harvard Divinity School.
Just now Francis Watson, known for the readership of this blog through his article "Beyond Suspicion: On the Authorship of the Mar Saba Letter and the Secret Gospel of Mark" (The Journal of Theological Studies 61 128-170), has claimed the new Gospel fragment a fake.
Posted on Mark Goodacre's NT Blog (in two parts) is Watson's short analysis titled The Gospel of Jesus’ Wife: How a Fake Gospel-Fragment was Composed. His verdict:
The Jesus of the Secret Gospel [of Mark] likes to consort naked with young men at night, while seeming hostile to women. By contrast, the new gospel fragment has Jesus speak disconcertingly of "my wife". Has this new heterosexual Jesus been created to complement Smith's homosexual one?
Watson's technique in unearthing the text as fake is to find ancient parallels to the words and sentences; in the case of the Gospel of Jesus' Wife, these are discovered mostly from the coptic Gospel of Thomas. My own problem with this method is that it looks to be too good for its own good: given the vast amount of ancient texts we have at our disposal (even though they may represent only 10% of all the ancient literature that once existed) any given piece of text could be argued to be "fake" if all it took was to come up with parallels from other ancient texts. I think the real problem is the question of provenance. If the Gospel of Jesus' Wife could be traced somewhere, preferably to an authorized archaeological dig, Watson's analysis would still stand, but his conclusions would end up different.
(Oh right, the youth in the Mystic Gospel of Mark is not naked, there is only one of them present, and Jesus' "hostility towards women" is not apparent in that text either. And Smith's Jesus was not a homosexual.)