Kinak
First Post
You mean Spelljammer? 
I don't think having this as the core setting would work out, although you can always imply that they all exist in the same continuum and could in theory reach each other. Whether that's by spelljamming or planeswalking or the world tree doesn't matter too much.
That said, I do appreciate the idea of having an Campaign Setting equivalent to the Manual of the Planes. An elevator pitch description followed by a few pages of material is about all I want most of the time anyway, although having wikis for everything has helped that.
Cheers!
Kinak

I don't think having this as the core setting would work out, although you can always imply that they all exist in the same continuum and could in theory reach each other. Whether that's by spelljamming or planeswalking or the world tree doesn't matter too much.
That said, I do appreciate the idea of having an Campaign Setting equivalent to the Manual of the Planes. An elevator pitch description followed by a few pages of material is about all I want most of the time anyway, although having wikis for everything has helped that.
Cheers!
Kinak