It's a pretty clever idea, I've come across loads of sites that have a naked domain but no www. As clever as it is though, it serves no real world purpose, any

It's a pretty clever idea, I've come across loads of sites that have a naked domain but no www. As clever as it is though, it serves no real world purpose, anyone clever enough to setup up their own domain will be able to set up a www subdomain, be it dns level or using a 301 redirect.