Guide:What is missing
From IokeWiki
What is missing
Sadly, Ioke S is not finished. Several things are missing before it's complete. The core mechanics of the language I'm feeling fairly confident in, but the core libraries are generally only partially implemented. They are much more complete than for the Ioke 0 release, but there still exist large holes in it.
Another major part -- maybe even THE major part -- is Java integration. At the moment it is not possible to call or interact with Java libraries. That need to happen, and it will happen after the S release. Concurrency will also be part of the work after the S release.