There really aren't any details about that, but for sure the Surface RT will be releases on October 26th along with the general availability of Windows 8. The price for that might be around 300-500. The Surface Pro is expected to come out 90 days after the Surface RT, so about mid January. Pricing for that might be about 700-900 dollars US.
I think I've read that the Surface won't be internationally sold, only here in the States...
I remember watching the video when Surface first shown to public the tablet wasn't working as expected when the screen touched, it unluckily didn't respond.
The presenter had to grab another available tablet.