features of ICH5/ICH5-R supported in -current or 5.1-RELEASE?

Hi all, I'm wondering if some of the features of the ICH5 found in the 
springdale and canterwood platforms (i865/i875) are currently supported 
in either 5.1-RELEASE or -CURRENT?

I've read through some of the ATA code commits and see a few comments 
related to ICH5 and I believe I spotted where the plain ATA controller 
is recognized (and in theory fully supported as this shouldn't have 
changed from ICH4). But I still have questions about the following:

   1) S-ATA: Is the S-ATA controller in ICH5 supported and if not, are 
there plans to support it? If not, is the problem documentation or 
hardware to test with?

   2) RAID: The ICH5-R supports RAID0 (and I guess RAID1 as well). Will 
this be a supported platform for RAID?

   3) Is the 3COM 3C940 Gigabit ethernet card supported? I checked in 
the 4.8's and 5.1's hardware release notes but couldn't find mention of it.

Thanks for any information,

-Jr