The platform and project had some really interesting ideas, but in October the founders of the project -- Laurent and Alard -- announced that StoryTlr would be shutting down on December 31. There just wasn't enough time or commercial interest to sustain the service. However, in a pretty classy move, the guys have open sourced the platform, meaning that existing users can download all of their data and migrate to a self-hosted solution. It also means that people who might have never even used StoryTlr can play around with some of its features.
The first version of StoryTlr is now available from a Google Code repository, with installation instructions and answers to frequently asked questions.
StoryTlr is being released under the Apache 2 license, which means users can even use it for commercial projects. Laurent and Alard plan to keep updating and monitoring the codebase over the next few weeks until a stable 1.0 is available.