Over at www.coolsmartphone.com, they have a real C600 up in a small-review type thing, but it's worth the read.
I have to say with WM 5.0, megapixel cam, EDGE and high-res screen, it looks tempting, but I would rather keep my C500 until one with WiFi is released. I know there are M2000's and that, which have WiFi, but I would rather have a candybar smartphone with WiFi thank-you-very-much
http://www.coolsmartphone.com/article462.html
Enjoy