I'm told that this is pure accident based on using a stereo mic and having the input-side equipment be on the left and the output on the right, but I thought it was a nice touch too. :)
I don't like wearing lavalier mics for this sort of thing (an extra layer of complexity, and they have to be headsets to avoid vocal amplitude changing) and the stereo image reduces the apparent echoeyness of the space. The main goal was to sound better than last vid :-)
I was more impressed with the fact that it was produced using all F/OSS software than anything. Other than the type on the title cards looking goofy, the production value is higher than anything I've ever seen come out of a non-fruity unix box.
FCP is one of the very last reasons I still have a mac...
http://wiki.xiph.org/Videos/A_Digital_Media_Primer_For_Geeks...
Only a few things have changed since then. I've done some more work within Cinelerra (I wrote a new resampler and a new color grading filter for it this time around). I'm also using a pair of matched suspension microphones (AT853a Unipoints) instead of the Crown boundary piezeos, which I've decided just aren't suited to anything I do.
Cinelerra is not for the faint of heart, and I don't casually recommend it. It is very powerful, rather unfriendly, and picky about the formats it uses. However, it will do things none of the other FOSS editors can.