Yes, but watch out for quality. I have recently (read: a few months ago) purchased a white one from eBay on a whim and swapped one of my N900 into it. I plan to write up a proper review but in short...

There are a few niggles with it: the battery cover is not quite flash with the rest (it's about 0.5mm short - not enough to cause a problem but enough to feel it), the whole case creaks a bit, the buttons work but don't click like the original... but most importantly none of the magnets are present, which means the SD card and opening the keyboard are not recognized. Lastly, the lens cover does not have the reflective black/white thingy which means the phone thinks the lens cover is open permanently. All of these are surmountable but better known beforehand.