I remember the talk about it at the time. I still have my sheevaplug at home, I pre-ordered one of the first dev kits and used to be active on one of the plug forums. I don't use it for anything much any more but I did a power-supply replacement a couple of years ago when it blew.

That pwn-plug has had some serious mods done to it, with bluetooth, 4G and 802.11 wireless built in! (--edit-- I see now that those are provided by adaptors, not built in to the box, that does reduce its stealthiness somewhat)

These new ones are much smaller than that by the looks of things though, seemingly on the scale of socket adaptors, rather than (to an up to date eye) quite a big power brick.

Thanks for the link, that was interesting.