Storage: At its EMC World conference, CEO Joe Tucci says that “there are more companies on out hit list” for acquisitions, while the heads of two company divisions named IBM as EMC’s chief competitor. Personnel: Scott McNealy steps down as Sun’s CEO, with the board of directors naming president and COO Jonathan Schwartz as his replacement, but company employees remain hopeful. Readers are voicing opinions in this Tech Watch post: With McNealy out, what should Schwartz focus on? Test Center review: “If you think of server virtualization in terms of VMware, SWSoft Virtuozzo will turn that thinking around,” begins Paul Venezia in Virtuozzo for Linux plays very well with others. That’s not to say that it’s a VMware killer, though. The news beat: Microsoft debuts a beta of IE 7 that brings features to fight security problems. Cisco and Nokia join forces to create dual mode phones for VoIP, cellular handsets. NetCustomer offers migration services to Ingres. And IT is driving Ireland’s diversity by providing a much-needed boost to the country’s economy.