The United States of Europe

Due to the European Union, the adoption of the Euro as the currency, and the future drafting of a constitution, is Europe now, or in the near future will, be a United States of Europe? Will this be good or bad? I know they are wary of letting Turkey into the EU because of the predominantly Muslim religion there, but I thought Turkey was a pretty secular government, banning all fanatic muslim groups. Do those of you in Europe oppose this, are for it, don't care, what?

wikipedia on the subject