The Forms Engine offers a great infrastructure for dynamically building UI forms for virtually any type of object, based entirely on configuration (no need to write code). The Forms Engine is very flexible and can be easily extended. Currently for the Browser and Web Tier we only have implementations based on the old YUI and Freemarker Templating technologies. As Aikau is gaining traction, it would be very nice to be able to make use of the full power of the Forms Engine's in Aikau based components and pages.
For an architectural overview of the Forms Engine, have a look at:
Forms Developer Guide/Architecture