There's nothing there to forget, I think the differences are stark between the countries - but in terms of how to manage a currency crisis (actually a bank solvency crisis, coupled with a political black hole) Iceland offers some good learnings.
In terms of the investment, to me that screams of the need for a different approach. The ongoing status quo has left Scotland as a public sector and benefits theme park - you say you can't see investments coming here, and I don't disagree with that. If I as a Scot can't see that....what on earth does it say for potential inward investors?! "If you keep doing what you're doing, you will keep getting what you are getting" - maintaining our same approach will mean that in twenty years, thirty years when Scotland is inherited by the next generation, it will be in even worse shape than today. That's what needs changed, and the status quo is not, and will not, do that.
This is an interesting read, and I empathise with much of this. For me it's not about the politics of today, or the argued economics of today. It's about the change to create something better.
http://kevsherry.wordpress.com/2014/08/26/why-i-changed-from-a-no-to-a-yes/