Hewlett-Packard Co has announced that the promised compliance of its proprietary MPE V operating system with the very low-level Posix interface standard will arrive next June, and has changed the HP 3000 operating system’s name to MPE/iX. The first step is to offer a tool kit to enable software developers convert their Unix applications for the HP 3000. The MPE/iX Developer Kit costs $10,000 to $50,000 and is out now; it uses the HP 3000 and an HP Apollo 9000 Series 700 workstation for client-server development, including Posix 1003.1 and Network File System and a version for Sun Microsystems Inc stations is set for second half, 1992. Uniface Corp, Alameda also said that its eponymous applications development environment would be integrated with MPE/iX.