Using the FT232RL, the iduino Serial USB Board shows up as a com port allowing serial communication to and from the Arduino Stamp or any other serial device. Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. iduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).
Connecting to the iduino Mini
See the guide to the iduino Minifor information on connecting the adapter to the Mini.