Toronto-based Messageware recently unveiled a pair of security tools, TimeGuard and NavGuard. The tools are designed to help IT managers more vigorously enforce usage policies with users that get at their corporate e-mail with Outlook Web Access (OWA) The emergence of cloud computing, where much of what a user needs is provided through a browser, may see other firms forgo desktop versions of Outlook entirely. Microsoft has been partnering with SAP on technology called Duet to bring enterprise resource planning data into Outlook.”]