Just checked IBM Developer Works and found an article regarding inter portlet communication between Portlets and Google Gadgets.
I was extremely excited with the original announcement for the inclusion of Google Gadgets in WebSphere Portal, as it was breaking down the traditional barriers of the enterprise with usage of internet based services outside the firewall. In my original post on this, I had noticed that the Gadgets could not receive wires from the property broker, thus were static in nature and unable to participate in a composite page.
So its great to see movement here on this front. However, after reading the article, I think some other tools will be needed to simplify the integration, configuring lots of XML files and writing Mapper classes takes time.
But none the less, we will have to try it soon.