Committed this afternoon to the xf86-video-intel driver development branch at
FreeDesktop.org is support for Intel's GMA 4-Series Chipsets. The 4-Series IGPs (namely the Intel X4500) are brand new and is designed to be three times faster than the current Intel GMA X3100. The commit for the G45 Linux graphics support can be viewed
here. More information on the Intel G45 chipset can be read at
Intel's website. Kudos to the Intel developers for delivering prompt support.