I've always named my HDDs, iPods and both my iPhones now.
I've had HDDs (renamed from Macintosh HD) to things like .id., Mini, iMac, kazum, seivom, and other wierd things, and changed their icons to stuff like Marvin the Martian, or The One Ring.
I've had iPods named, for the love of iPod, i do i am iPod, kosher iPod, and nano nano (Mork and Mindy reference)
My original iPhone was called The One Phone - yes LOTR reference.
I named my 3G One Phone b/c I didn't want the backups, etc from the original iPhone to cause any wierd conflicts etc.