I finally got enough sun at home to see the problem ^^ Luckily, mine is in a case. (I have the white one) It's awfully shiny, but I guess I don't really mind since I don't intend to ever use it without a case. Having cats at home who like walking ON everything, including my iPad (which has a cover...), I can't live it lying around "naked". And in the bag, it's out of the question. Keys, pens, endless stuff which could damage it.
I might put a sticker on it, just because there are some really pretty stuff out there. But I like white shiny Sony stuff
(I have the Vaio P in pearl white, which is the prettiest thing ever)