In today's 3D adventures...
I finally found a short mention of how to get the blender file into the scene in Unity.... Drag & Drop.
Then I figured out how to add a material and eventually that that too, was dragged and dropped onto the object.
So I tried to drag and drop a texture. But no. No textures are linked to the materials and "it's as simple as creating a folder called textures and putting the image file in there" - but no mention of how to apply it. Looking at some example objects I noticed a tiny wee square in front of the materials colour box and THAT's where the texture goes.
Unity might be "simple" but it sure as hell isn't obvious.
Still haven't quite figured it out.
Also tried smoothing surfaces in Blender (because you seem to need Unity Pro to do it over there). Blender apparently has some pre-determined smoothing setting. You can then apply a modifier to determine the amount of smoothing, which instantly makes everything look awful. So that's not quite right, either.
I then opened another file where it seems I built something back-to-front. And try as I might I cannot rotate the whole thing as one, but each piece is rotaded along it's own axes.
In short, a day full of frustrating failures. Though I guess I did at least learn to apply simple materials without texture.... (Then again, other "material spheres" have more than one colour and that's still a mystery to me....)