AVN has a copy of the ruling here.

My take: an appeal is inevitable. This seems to drive a dagger into the heart of essentially all obscenity prosecutions, at any level, not just federal. The wording is not that broad, but the affect seems to be.

It is possible that the government might not want to use this case to appeal the issue: it might be a better strategy to use another case that was strictly ordinary mail-order, without the web site signup complications. I don't know how that stuff works.

This appears to be more fallout from the Lawrence decision, overturning the Texas laws against gay sex at home & in private, but the decision pulls together a lot more than that. Lawrence is what gets the judge around prior Supreme Court decisions.

At a glance it looks pretty carefully done by the district court, thoroughly researched, ready for the appeal. How far "out there" it is I do not know: we'll have to see what Real Lawyers say. I also don't know how conservative the appeals court with jurisdiction is.