A new driver always gets me excited.
My little nice experience. I have a Dell Vostro 1400 notebook with Core 2 Duo T5270 @ 1.4GHz and NVidia 8400M GS. Running Ubuntu 8.10 with nvidia 180.06. Installed mplayer-vdpau using the source package as announced in nvnews linux forums (just downloaded mplayer-vdpau-3076399.tar.bz2 and ran the script checkout-patch-build.sh as said in readme). Running a 1080i hdtv video with normal mplayer (from medibuntu) with vo=xv, cpu usage is 50-55%, with mplayer-vdpau and *only* vo=vdpau (software accel) is 60% and looks blocky, and with vo=vdpau, vc=ffmpeg12vdpau is 35-40%. So its quite a big drop in cpu usage . Quality seems to be a little better with xv.
Great start, god speed .