I was just over @ NvMax they seem to have received an email from a mole that Detonator 5 will be released with GeForce4!

If you want to read the email hit read more. Received a small email today saying the upcoming NVIDIA(R) range will bundle with Detonator 5 drivers (incorporating nView software for Twinview products). It also looks likely that some of the GeForce 4 or NV17 units are Twinview enabled.