I've pretty much given up on the Mechanical Turk these days. I am working on a 4x Browser Space Game called Project Libertine. It's design is based on some of the old Play by Mail games I used to play back in the 1980's and 1990's.
It's a long way from being ready, but I'm updating the development blog fairly regularly. I've actually got some plans about using Mechanical Turk to automate some of the game administration once it goes live. Like approving character and ship names and such.