A friend pointed out a blog called voipniche, which has some interesting posts in it. Like this one, this one, and even this one. If they look familiar to you, it's because they have lifted them from this blog, verbatim, with no attribution.
Let's see if this is an automated process, or if there is a real live thief behind this AdSense scam.
VOIPNICHE.COM REPOSTS ITEMS FROM EUROTELCOBLOG WITH NO ATTRIBUTION AND WITHOUT PERMISSION
I'll be curious to see if this post turns up there later today.
UPDATE: Less than two minutes later, the post indeed appeared on the site. Looks like voipniche is a direct RSS-reader-to-splog bot of some sort. What a wickedly ingenious development! I used Centralops to look up the domain. Seems to be registered to someone in Mumbai, but the traceroute ends in Brazil. Who knows, who cares? Enjoy that AdSense money, whoever you are!