Device Drivers

I've been playing around on Zeta (the latest version of BeOS), I love it. What I don't love is :

• my video chipset is not supported (only works in VESA mode),
• my sound card does not work (AC97 driver does work with my laptop),
• my wireless networking does not work (Intel Centrino).

This got me thinking, why is there no OS-independent standard for device drivers? Device drivers (and the lack thereof) is one of the biggest costs for OS development, and a big barrier to use of minority OS's. Image if you could use the same device driver for Linux, NetBSD, OpenBSD, BeOS (Zeta), any maybe even OSX. Now before you say this is impossible, check out SciTech, who have a "Multi-OS graphics device driver solution" called SciTech SNAP.