directx 10 is released....

apparently only for windows vista.

just about a week ago i had installed it(vista beta) into one of my friends comp. went there to check it.
using start>run>dxdiag. came to the directx diagnostics tool. it says it has directx 10 loaded. then checked my own comp (running windows xp pro) and it says directx 9.0C.
went to the microsoft download section and looked around for directx 10. its not there. only came across the developers tools released in april and june.

then i came across this

http://www.gizmodo.com/gadgets/pcs/d...nly-180965.php

now.....my question is this that if a computer is able to load and run vista, it should also be able to run directx 10.
reading through the above link

no final Direct X-compatable hardware has been released yet
same computer.... directx 10 on vista and directx 9 on xp. that means the hardware is compatable.

even after downloading the new versions the diagnostics tool still shows directx 9.0C


does that mean we cant get it till we upgrade to vista?