Yup, I'm an XRI Pioneer, thanks to a birthday gift from some good friends of mine!
I haven't found them terribly widely spread, mostly just around the
. I'll keep looking.
Tangentially related ... I suspect (though can't be sure without accidentally getting spoilered) that I'm near the end of the plot ... I have gathered from the forums here that I will still be able to drive around and take photos (and presumably, tag them?) after the plotline ends. But will I still be able to get and complete missions from van Susteren? Or will it just be "free-roaming" do-what-I-want driving around and picture-taking?