psiTurk is always looking to improve and to increase the number of contributors. We thought it would be helpful to lay out a basic roadmap of where we would like to see the project go in the future. This roadmap may inspire you to implement a new feature!
The documentation is greatly lagging behind progress on the psiTurk platform. We need help with people debugging documentation, improving it, and making additions! Notice how all documentation pages (including this one!) include a link to "Edit on GitHub". Make a pull request and help us improve these docs!
The version 2.0 release introduced a number of new features which are fairly complex because they require communication over the Internet, RESTful APIs, etc... While there are automated unit tests for many of these features, it is important to have better tests of these features. Testing isn't glamorous but writing tests improves your health, looks, and chances of getting in heaven.
Alternative database solutions
Currently psiTurk offers a variety of database solutions including local SQLite files, self-administered MySQL servers, and MySQL processes hosted on Amazon's Web Services (RDS) platform. However, all of these are a little clunky and require users to know quite a bit about data management. The demands placed on these databases by a single experiment are not excessive, and thus there might be a more robust solution (e.g., NoSQL). One possibility is to host a robust cloud-based data API off psiturk.org.
The Ad Server has the potential to gather valuable data about participants in studies, how naive they are, etc... Currently only a limited number of statistics are gathered, and much of this data is not publically accessible via an API or interface. Future versions of the psiturk.org dashboard could provide users with more interesting statistics about participants in their experiments, their geographic location, etc...
Unique IP issues
A major issue with psiTurk is that it requires a unique, Internet addressable IP address. This is a hurdle at some universities or companies. This is a bug and a feature at some level. The feature side is that for many users the ability to serve experiments off their local computer obviates the need for a dedicated server and simplifies some web security issues. For other users thought this is a fustrating hurdle to overcome in order to use psiturk. We are interesting in the community's thoughts about this and suggestions about best practices include cloud based hosting systems like Red Hat's OpenShift and Amazon's AWS.
We envision that eventually psiturk could move entirely into the cloud (i.e., no need for user to install command line tool). This may be supported by changes and extensions to the psiturk.org API and the psiturk.js library. The emphasis in our initial development has been on advanced users/programmers comfortable in a unix environment, but future version could emphasize novice web programmers who are new to online experiments (e.g., undergrads).
If you have ideas about future directions for the project the Github issues tracker is a great place to share them.