These are two requirements that need to be looked at for the Wireless Backbone. The ability to revenue share also is key. This is real commercial stuff here with your nodes. Sharing access for ad hoc users would also be useful. Dang, why not be a hotspot?
Internet access is available also.
I would be keen to see your thoughts on this as I know of a system that can do it now and there is enthusiasm to support a community network initiative.