First, let me just say that I hate these million dollar wikis. However, having bought a page for experimenting, I'd like to see it get as much publicity as possible (so I might recoup my investment...) So... MillionDollarWiki should sue MillionEuroWiki! Think about the publicity. One scam site suing another. MDW should have made about $100k by now, so the kid has the money to sue someone. Why not file a lawsuit? Someone, ideally a major news channel, is bound to take notice. Then more publicity for those sites and everyone that bought a page
That would be a lot of publicity then hehe, who knows, maby he's won his 100k 3 times back from the sales after the publicity
Interestingly enough, the person who ripped MillionDollarWiki with MillionEuroWiki also ripped johnchow.com with johncow.com. From the readings on John Chow's blog, he doesn't seem to mind that much.
He would have no case because they are different currencies aka different regions to cover so they would say he is not infringing on his right to make money in his target market and wiki is not a new term either so you could say other wiki sites before him could sue for using same idea.