I can summarize. Mostly just people making snarky comments about opposing products. The guy from CouchDB is particularly annoying. Apparently he feels like he has to raise his voice and cut people off to defend his product.
One the other hand, the discussion is punctuated with the audience yelling "Louder!" and "We can't hear you!" on top of a lot of background noise (including various interruptions from the audience). I got the sense you almost had to be loud and aggressive to be heard. It got kind of stressful to listen to.
The guys on this podcast mapped it out at the SXSW table I was sitting at over lunch. It seemed pretty clear to me there was going to be some spirited arguing when they got down to it.