Wait....so Scottish nationalists are in FAVOR of joining the Eurzone? Is this just to piss off England or something? I thought most European nationalists are heartily opposed to anything that smacks of tighter European integration.
"European nationalists" aren't all the same, you see. There are two main groups.
There is a big difference between a "nationalist" party like UKIP and a separatist/nationalist party like the SNP in Europe. If the nationalist party is attached to an independent country like UKIP is to the UK, their nationalism tends to be directed against the EU. The same thing goes for nationalists in the Netherlands and Hungary and places like that.
If the objective of the nationalist party is the "independence" of a region as a nation-state, as is the aim of Catalan, Welsh, Breton and Scottish nationalists, they tend to adopt a very pro-EU stance on things. The SNP had a slogan in the '90s - "Independence in Europe". It's designed to give us a stronger sense of security because we wouldn't just be totally independent nations, we'd be independent
within the European community, giving us more support and such.
There is also a strong Eurosceptic undercurrent seeping into British politics these days which is quite unheard of in Scotland. Highlighting that difference is handy when trying to convince people that Scotland, if given the freedom to do so, would take a very different path to the rest of the UK.
Well, the EU status is not exactly clear. As long as the EU doesn't make an official statement on it at least. It's unclear if Scotland would have to re-apply for membership or if some other solution could be found. While it's pretty obvious that Scotland could join or stay in, as long as the EU pretends that independence isn't happening and doesn't make any statements, nothing is technically guaranteed.
Scotland would most likely have to reapply, but it would be a rubber stamping process. It is against the interests of most EU members to keep Scotland out in the cold for very long at all and most of the negotiations could be put in order during the transitional period between the referendum and independence if the UK would agree to negotiate on our behalf, as they would. They could actually sort that out right now but as I've said before the UK refuses to prenegotiate the terms of independence unless it's on their terms.