torabian, you do realize Sabayon is simply another Linux distro, and not a Debian based one (which all the *buntu's and LinuxMCE are based on). Beryl is nice for 3D effects and wow, but pointless for a production system or a home theater system IMO. If you could explain what features make it applicable to LinuxMCE or an HTPC I'm all ears, but including it "just to have it" makes no sense to me, there are other things the devs need to be worrying about.
BTW, Beryl has gone the way of the buffalo and is being replaced by compiz/compiz-fusion, which is included by default in Ubuntu 7.10, not sure about Kubuntu 7.10 but it wouldn't surprise me, so it might have some interaction with LinuxMCE after all.