ParcPlace-Digitalk Inc, Sunnyvale, California is releasing a VisualWave object-oriented development environment for creating World Wide Web applications at EMail World and Internet Expo in Boston. The Smalltalk-based VisualWave will enable developers to create and deploy applications across Unix, Windows and the Web. It includes all VisualWorks 2.5 functionality. IBM Corp is also promising some Internet announcements at the show.