There's a lot of subtlety in choosing colours and feels, not all greys are the same. I mean think of how many premium devices come in grey aluminium finish - th

There's a lot of subtlety in choosing colours and feels, not all greys are the same. I mean think of how many premium devices come in grey aluminium finish - there's lots and they look great. No one has ever made a "concrete finish" device, because that would be horrible. Likewise, you can't put OSX and win95 next to each other and say "they're both grey, therefore they are basically the same" because that's obviously rubbish - the shading, layout, spacing, and shapes of osx are much more pleasing because they benefit from years of refinement by people who are visual designers rather than engineers.