Someone called Sev7en, perhaps not their real name, has posted a very detailed tutorial on how to get OS X running on a Sony Vaio UX. Of course, this isn’t allowed by the OS X EULA, so the tutorial has the standard disclaimer;

This method is not confirmed or trusted and some people say it is illegal because the EULA says that you are not allowed to install OSX on non-Apple hardware. This means that for most people it is ILLEGAL to install osx on their computer. If you aren’t an Apple developer, leave this guide now.

If you are an Apple developer, then the guide looks fairly simple, and the results look good. You could always just wait for an iPhone though, which will have much of the functionality, at a fraction of the cost. :: Micro PC Talk