In my current project I have to create a dashboards that reflects the actual (and historical) situation in a factory. At first I tried something like the dashboards Anychart provides on it's site, like this. It is possible to create that kind of stuff in APEX, but then you have to generate all the XML data by yourself. And the fastest way to do something is...don't do it at all.
So, since the subregion-feature of APEX 4, you can achieve the same results by only tweaking the Chart XML itself a "little". And now I have something like this:
apex.oracle.com (refreshes every 3 seconds with random data).