It seems that cyclenews have been amongst the first to get the hands on the new KTM 250SXF twin cam screamer.
http://www.cyclenews.com/ShowStory.asp?HeadlineID=7491
Sounds pretty nice if you want a 250 Four Stroke. I'm sure there will be quite a few people waiting to see them arrive in Australia in registerable form.
I know of one old style (01/02?) KTM 250EXC Four Stroke that gets the crap revved out of it regularly (and did a suspected oil ring last weekend).
The twin cam beastie might be able to stand up to that sort of constant hammerin better than the old single cam.
Time will tell.
I wonder how long before the twin cam 450/525's come out ? ;-)