I have to think all of this is just global political jostling -- you're seeing the same thing happen here in the US with tax inversion headlines. Issues like this poll well.

In the US, no politician wants to attempt true tax reform since it's basically a non-starter so instead we have a game of quick-wins. Yes, it makes the public feel good but doesn't actually help simplify the tax code to promote business and limit avoidance ROI.

By the time Ireland's new tax laws become enforceable (2020-ish), you'll see all of these companies re-evaluate their office locations within the tariff-free member states. Who knows, maybe the next Ireland will be in Liechtenstein, Turkey, San Marino, Monaco, or Andorra -- I think they are non-EU but participate in the single market.

The iterations of corporate tax avoidance are pretty fun to watch -- and even more interesting to try and understand. Can't wait to see what the lawyers cook up next:)