Today various applications show an user interface designed like web sites. If you're a fun of the assertion don't reinvent the wheel, you can check HTMLayout from Terra Informatica.
Another useful feature in a modern application is customization via scripting. If you think so and need an embeddable solution, you can try TIScrirpt from the same company.
Tuesday, 9 March 2010
The developments of latest beta have been made final in version 1.8 stable. You can download sources (including documentation), binaries and documentation (available also on project home, here) from release home. This version includes also a patch submitted by an user (details here).