Then, of course, there is the important decision regarding currency. Scotland could decide to stay on the pound, go on the euro, or start its own currency. Under the first two choices, Scotland would cede much of its newly gained independence to others, with great economic risks (see southern Europe). The third choice wouldn't be very different from the first two; Scotland is a small, open economy, so its exchange rate would be determined primarily by the balance of payments, changes in government debt, and relative money growth.
I could be wrong, but if Scotland does leave the UK, it cannot keep the pound if it wishes to join the EU. They could if they remain independent, but if they go to join the EU, they would not be allowed to keep the pound as currency and would have to take the Euro.
I admit I am not up on all the particulars, but at first blush, this doesn’t seem all that well thought out.