Twelve years ago I wrote the book on the Euro Changeover in IT systems (“Managing the Euro in Information Systems”, Addison-Wesley, 1999). I wonder will 2012 see the year some countries have to switch back? Internally it should be easy enough if they adopt 1 new NC (eg púnt nua) = 1 euro then national prices remain the same. International prices will then need foreign currency handling. Ah well. At the time (1999-2001) I had believed there were controls in place on financial discipline but the realpolitik proved otherwise.
On the side of End User Computing and Compliance and Best Practices and Spreadsheet Controls and all those good things, well, I’m still developing techniques, tools, processes, and training for organizations to get to grips with the spreadsheet Hydra – ask me for more info!