Ktm will probably bring out a comfy seat and larger tank in time. I am also keeping an eye on this bike as on the rocky and muddy uk trails you can't get the full 450 power to the ground and the weight difference should make the long days on tough trails more enjoyable with a lot less effort. Looking to get the 2013 model though as not keen on first year production bikes.
At least KTM are making them available to folks in the UK - no sign of them on the Australian website as yet. Also saw the UK pre-order price is around 6000 pounds, so that sounds reasonable...