Id does have a new name though, OWA Mini.
We probably don't use this option very often bacause today's smartphones use activesync or a fully functional browser that can display OWA.
But still, it is a nice feature for older phones and it saves some Mb's on your 3G data.
Once SP2 is installed on your CAS, OWA Mini can be reached by setting the /oma switch behind your normal url. Your url should look like this : https://mail.domain.com/owa/oma .
Once logged in, you will see your inbox.
I have 1 unread message at the moment.
When you click the message, the content will be shown like this:
When you click the Calendar at the home page, appointments will be shown like this:
When choosing the options menu, the following options are available to edit:
Not many options, but OWA Mini does the trick if you just want to view appointments or emails.
Try it for yourselve? Install SP2 and don't forget to read the release notes.
Exchange 2010 SP2 can be downloaded here