September 6, 2011
You now can flash 6970 for macpro 3,1+, to get boot screen and almost working driver in Lion.
to get it you need to
1) install “standart” package from here – link.
2) switch off macpro, install 6970, boot(it will freeze at white/gray screen), reset(reset, not pweroff), boot to desktop
freeze might happen on cold start, reset if happens. another way – start up windows via bootcamp on cold start, then reboot into osx.