There are some features that are only available in Outlook, I can't think of them off the top of my head. There are also some features that are only available in OWA as well. There isn't a comprehensive list I can point you to, but I think the OWA 2010 experience is much closer to parity with Outlook than previous versions of OWA.
Last Wiki Answer Submitted: March 19, 2010 7:50 pm by MicrosoftExpert975 pts.
If you live outside the United States, by submitting your email address you consent to having your personal data transferred to and processed in the United States.