MetaCard was a cross-platform, commercial GUI toolkit. MetaCard included an IDE

Integrated development environment

An integrated development environment is a software application that provides comprehensive facilities to computer programmers for software development...

 and had its own language, MetaTalk. From the MetaCard Corporation website: "The MetaTalk language has all the features common to third-generation languages like C

C (programming language)

C is a general-purpose computer programming language developed between 1969 and 1973 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system....

/C++

C++

C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language. It is regarded as an intermediate-level language, as it comprises a combination of both high-level and low-level language features. It was developed by Bjarne Stroustrup starting in 1979 at Bell...

/Java

Java (programming language)

Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...

 but has a much simpler syntax."

All the Metacard technologies are now part of Runtime Revolution ("RunRev"). The only part that Runtime Revolution did not adapt was the GUI

Graphical user interface

In computing, a graphical user interface is a type of user interface that allows users to interact with electronic devices with images rather than text commands. GUIs can be used in computers, hand-held devices such as MP3 players, portable media players or gaming devices, household appliances and...

 of the Metacard IDE. It lives on as the Metacard IDE open source

Open source

The term open source describes practices in production and development that promote access to the end product's source materials. Some consider open source a philosophy, others consider it a pragmatic methodology...

 project. It currently exists as a yahoo group, as well as a mail discussion list hosted by Runtime Revolution.

Runtime Revolution

Runtime Revolution

Runtime Revolution Ltd. makes the LiveCode cross-platform development environment for creating applications that run on iOS, Microsoft Windows, Linux, Mac OS X and Solaris.-History:...

 changed the name of "Revolution" to "LiveCode

LiveCode

The LiveCode programming language is a commercial cross-platform rapid application development language inspired by Hypercard's programming language HyperTalk.The language was first introduced in 2001...

"