1. What differences should I expect with Exchange 2010?

Most users will notice only an improvement to the Outlook Web App (OWA) interface.

Graphic of the general email appearance of Outlook Web App for Exchange
                  2010.
Figure 1. Outlook Web App for Exchange 2010

Which web browsers can now use the full version of OWA?

With Exchange 2007 (our old implementation) only some recent versions of Internet Explorer could use the full OWA functionality. In Exchange 2010, the following web browsers should use OWA-full.

On a computer running Windows XP, Windows 2003, Windows Vista, or Windows 7:
  • Internet Explorer 7 and later versions
  • Firefox 3.0.1 and later versions
  • Chrome 3.0.195.27 and later versions
On a computer running Mac OS X 10.5 and later versions:
  • Safari 3.1 and later versions
  • Firefox 3.0.1 and later versions
On a computer running Linux:
  • Firefox 3.0.1 and later versions

Source: http://help.outlook.com/en-us/140/bb899685.aspx.

If you use a Web browser that doesn't support the full feature set, Outlook Web App will open in the light version.

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