Dan Wallace, professor of New Testament at Dallas Theological Seminary is considered to be one of the foremost scholars in the area a biblical textual studies. The guy knows a whole bunch about ancient manuscripts.
He’s weighed in on the Coptic fragment in question with a really thorough explanation of what the fragment is, what it says, and what it is likely to mean or not mean to our understanding of the historical Jesus.
If you’re interested in this sort of thing, you should read it. For apologetic purposes, knowing the facts about this fragment can help you know how to talk about it to those you know who’ve bought all the hype surrounding it this week.