Monkeybread Software has released version 9.4 of the MBS plug-in for
REALbasic. The MBS plug-in comprises a collection of several plug-in
parts which extend the REALbasic development environment with 1,500
classes featuring over 29,000 documented functions.

The plug-ins require REALbasic 2006r4 or newer. Also required are
500MB hard disc space and around 64MB of RAM in addition to the
requirements of REALbasic and your operation system itself. While all
plug-in parts compile on Mac OS X, Linux and Windows, each function
may depend on additional system requirements to work successfully.

Plugin licenses are available for components or for the complete
collection. They start at US$28 \ for one component. The complete
package costs $275 for commercial usage.

If you buy a current license, you will get free updates for one year.
After that year, you can update your license to cover an additional
year. The plug-ins can be downloaded on MBS’ website as one big
package or several smaller ones:
http://www.monkeybreadsoftware.de/realbasic/plugins.shtml