Dave Batton has updated his development shell for 4th Dimension (4D), the database environment,
Foundation 4. Foundation 4 is a structure file used to act as a starting point for 4D database projects.
The new version is essentially a complete rewrite of the shell, according to the developer, and it takes advantage of new features available in 4D 2003. It includes a set of 4D Components that simplify development of new databases, each including complete source code.
Foundation 4 costs US$295, or $150 if upgrading from a previous version. A demo version is available for download.