Here is a down-to-earth post-mortem written Adam DeCamp, the lead writer of Unrest from his persêctive: http://www.shamusyoung.com/twentysidedtale/?p=23830
A little over three months after that post went up, "A Pyrodactyl Postmortem Postmortem"
on the same site, in which he announced the Kickstarter campaign for Pyrodactyl's next RPG, an espionage thriller of sorts set in an alternate-history version of late-Soviet-era Estonia.
P.S.: Sorry about the reply to such an old post, catpower. Didn't want to start a new thread just for this, especially in such a dead subforum (for a game I don't even own!). :)
Also, nice to see I'm not the only Twenty Sided reader on these forums.