My dealer (Sutherland) said there is no way we're getting the IS350 over here. It's been out ages elsewhere, but not coming here. The reason the IS300 came out here is apparently it was released after the IS200 to fill a gap, but now the gap has been filled by the IS-F.
I still see a huge gap, and would have opted for the IS350 without blinking an eye if it was available.