Well one of those hit is James Thomson who is based in Glasgow, Scotland so from the p.o.v. of the suer the answer to your question is "no".
In terms of European s/w patents, sadly according to the FSF:
"In Europe the legislation has decided that software is not patentable. But laws are always interpreted by people, and in this case interpretations of the law differ. So the European Patents Office (EPO) grants software patents by declaring them as "computer implemented inventions"
I very much doubt he has an European patent on "in-app purchases", so my bet is that they threaten to sue him in the US. I'm not sure if the outcome is enforceable in Europe though.
Actually, the App Store in Europe is provided by iTunes S.à r.l, a Luxembourg (EU) company, not Apple Inc., so a US court can't really force anything to be pulled from the App Store in Europe.
In terms of European s/w patents, sadly according to the FSF:
"In Europe the legislation has decided that software is not patentable. But laws are always interpreted by people, and in this case interpretations of the law differ. So the European Patents Office (EPO) grants software patents by declaring them as "computer implemented inventions"
Source: http://fsfe.org/projects/swpat/swpat.en.html