Safari seems to have a problem with client initiated interactions when there is more than one portlet on a page. I could successfully use a single portlet (sync or async) in both Liferay and JBoss. After adding a second portlet to the page, I could no longer interact with either portlet. If it was an async portlet, the clocks would continue to tick (server-push was still working) but any client interaction would fail. Safari's JavaScript console did seem to indicate that there was problem with the bridge (undefined Line 0 and Null value at line 1932).
Bug
Major