I've wanted a SCSI "disk" that is / Basically a SCSI to ethernet/wifi to fileserver. It would be one solution to the diskless booting problem.
Hmmm. Perhaps a modification of Micha's homebrew SCSI RAM disk, replacing one (or both) of the AVRs with a newer micro with ethernet/wifi onboard.
ROM replacements for existing ethernet cards that would retrieve an image at boot, copy it into RAM, and present it as a bootable RAM disk.
Well now, that is an interesting thought. Have you been following dougg3's epic ROM hacking thread?