UPDATE: when I use the phrase an "X1 clone" I just mean to say a compact camera with a CMOS sensor, the X1 is just used as a reference. Do not expect to get the exact same Leica X1 camera with a Nikon logo for a half price. If Nikon does release something like that, I can guarantee you it will have nothing to do with the Leica X1, except the sensor size.
The second mystery camera on October 15th may really be a Leica X1 clone. This rumor circulated the globe few weeks ago and Nikon Singapore has replied that "based on the current outlook, we do not foresee a similar product range as the Leica X1" (initial source was CNet).
The rumor I received today says that Nikon is manufacturing the X1 model for Leica (or at least parts of it) and that the Nikon version will have the same sensor as in the D300. Not sure yet whether it will have video recording capabilities (the Leica X1 doesn't). The source mentioned also that the camera may have a swivel display or look even something like the old Nikon Coolpix 995:
NR probability rating: 90% (up from 80% few days ago)