Some news.
Xen 4.0.0 is coming(rc2 atm)
"This does seem to work for basic cards, ie Intel and some ATI but not NVIDIA Cards as they still need the
pBAR=vBAR patches."
http://article.gmane.org/gmane.comp....en.devel/76906
http://wiki.xensource.com/xenwiki/XenUpdate20100115