Sorting works as does resizing the columns, but scrolling through the results does not. The table in the demo doesn't finish populating and the scroll bars don't do anything. The status bar looks like it's trying to make the AJAX request.
Yes, we know about scrollable table issues in safary. There are issues in our jira. But it's pointed to 3.2.0.
Also Safary 3 beta - isn't supported yet at all.