I recently acquired a copy of the Washington City Paper for the week, APRIL 6-12, 2007. The feature article is entitled as "Sects Appeal." It is billed as being the guide to alternative Christian enlightenment. The article itself is set up as a board game BUT it is written in a manner similar to the flavor of the Plansecape manual when it covers the factions. There are 12 featured "sects" and, after reading it, I felt as though I was reading about Sigil (or a comparable Gate-Town).
The presentation of the belief systems left me thinking only of Planescape; so much so, that I thought I'd share it.
That is interesting. Any chance you could go into a little more detail on the contents of the article? I'd be interested in seeing just how much it syncs up