ParcPlace Systems Inc, the object-oriented Xerox Corp working on the development and marketing of the Smalltalk-80 language, has signed a licensing agreement with fellow Smalltalk developer Digitalk Inc of Los Angeles, maker of Smalltalk-V products for Unix systems. The agreement gives Digitalk royalty-free use of the Smalltalk-80 language, as well as to characteristics of system implementation that overlap between the two companies’ products. ParcPlace Systems was spunoff from Xerox in April 1988, and includes the core Smalltalk development team – Adele Goldberg, Glenn Krasner, Duane Bay and Peter Deutsch. This month the company is planning to release a new version of Smalltalk under a different name, which it says will be more accessible to corporate information system users and programmers. And at the end of June, ParcPlace will be ready to launch its long-awaited programming environment for C++.