Also note that you can have (to the best of my understanding) nodes within nodes. This may be the most reasonable idea for some kind of corporate compound, as it's hard to imagine a corporate owned building operating without any kind of network hierarchy.
Unwired will also supposedly add node classifications, which I'm betting will create some kind of structure for systems that have no business being peer-to-peer mesh, like said megacorp facility.
Oh yeah, and I'm also hoping that
Unwired comes out within two weeks.