this is just so old new xls.
everyone already knew about this, well everyone except you

edit: yes you can do it but you cant do it in the same way.
its ALOT easier to do it on the nv40 card than it is on the r3xx cards.
this is the main deal with sm3.0, everything can be done quicker and less time consuming than on the earlier sm2.0.

you were just alittle off, but that easily happen if you dont read up on things but instead just see a picture and goes "WTF, IT LOOKS THE SAME..NVIDIA SUCKS"

there are plenty of sites out there that explains the difference betwean sm2.0 and sm3.0.
and also how displacement mapping works.
just do a google and you will find them :thumbup:

edit: OMG my post count have hit 600 how sweet