Powder Software today announced that Summit Groupware 2006, collaboration software for Mac enterprise, including email, calendars, contacts and projects, is available for download. “Summit Groupware 2006 provides the core functions of email, contacts, calendars and projects in one feature rich application for business communication and collaboration. Users can send and receive email, share contacts and calendars, schedule meetings, book resources, coordinate team projects with email, calendar and contact tie-ins, as well as keep personal information private and organized.”