GlobalScale Technologies recently released a new Plugcomputer, called the DreamPlug. It is basically a GuruPlug Server Plus in an new enclosure, with additional features like audio and a 2GB on-board microSD. Hopefully, the enclosure is well designed and there are no heat problems (quote: "with no internal moving components"). Without any heat problems and no fan, I would really consider it a dream plug.
So far, I'm still busy with my GuruPlug Server Plus as long as I have some time for it (which is not the case recently). I'm excited to see reviews if anyone got a DreamPlug.