In the opposite way of ATI and Nvidia, Intel has released its newest Intel 965 Express chipset-based 3D cards device driver (gpl-ed for linux kernel, mit-ed for X).
I think it would be enough if they showed the specifications, but this decision is wonderful! (I suppose this fact is related with Keith Packard‘s work inside Intel 
)
References:
- The happy new in Slashdot
- KP message in freedesktop.org mailing lists
- Announcement in Linux Graphics Drivers from Intel project