What about ownership? Can parts of the Ether be sectioned off and claimed by certain people,companies, countries?
Or would certain areas fall more into the concept of intellectual property? i.e. "I thought of it...so it's mine?"
The concept of intellectual property isn't one we've much considered, to be honest.
With Etherspace it's not a question of "can" they be sectioned off. To create a space in which you can work and whatever else you may wish to do, you need to create a Domain
. These domains, usually connected to one central city domain, are what makes up the Etherscope (as opposed to Etherspace). You will typically have a serivice provider type of company creating and managing a domain which they section off into different systems which can be hired out to other companies.