Embattled Macintosh lovers still have quite a wait before they will be able to rhapsodize over Rhapsody, but before the operating environment built atop OpenStep arrives, there are new releases of Macintosh System 7 to be enjoyed, and Apple Computer Inc has been talking up Tempo, the code name for the update to the current 7.6 version of Mac OS just released. According to MacWeek, the new release, due July, will run only on 68040- and PowerPC-based Macs, so the maintenance release set for spring will be the last new Mac OS to run on 68030 machines. Key feature of Tempo will be a new Finder – the face Mac OS presents to the user – which will be be fully native to the PowerPC and will be multithreaded, so that users can concurrently perform such tasks as copying a file while opening a window. Tempo will add Internet tools such as Mac OS Runtime for Java, Personal Web Sharing and an updated Cyberdog browser.