It seems that we are going to adopt EURO much later than 2012.
Main reason look on what happen in baltic states. They are members of program before Euro. When troubles apeared they Estonia have 11% infation and only 4.5 % incerease of GDP. Latvia has 16% inflation. This countries can't react on this changes because they are in program before Euro
We have biger inflation too (1% one year ago now about 3- 4%), it isn't so horible like in baltic states because we have tools to react in result we have the smallest inflation form new EU members. The other thing is that baltic states had unbalanced budget policy, Polish growt is the healthies in new EU, now we will see why ;) (during troubles).
Euro yes but not now when we develope much faster than Euro Zone and decsions of European bank (good for Germany or Italy) can be harming for our rapidly developing country.
