I sill like the matte one best
I think that the matte black is pretty much perfect as the production case color - and that for the sake of keeping the assembly variations sane, should be the only production case color.
Clearly there are people, though, who would like alternatives - which could be stocked in the store as accessories?
The other alternative would be to have a distinct case color for each of the hardware variants - but even that could become a nightmare of minimum order quantities, stocking and tracking it all to know which version and color is in which packaging.
How many hardware variants are there? Is this list accurate?
2GB
4GB
2GB Euro 4G
2GB US 4G
4GB Euro 4G
4GB US 4G
If offered in black only, that is 6 variants. If offered in choice of three colors that is 18 variants. Four color choices becomes 24...
That matte black is a fine color for production though. I realize some may decide I'm a hypocrite for making the above statements given that I'll be getting an odd-not-production case color on my prototype. But, that was part of the deal on the prototypes.
I think that it is impractical to offer wide varieties of production case colors. If I had a regular pre-order in, I would be thrilled to get a matte black one then buy alternate sets of case plastics to customize it as they become available in the store.