I love database performance visualization tools and now Oracle has released small desktop widgets that give a quick overview of the targets in OEM Grid Control.
The one I really like is High-Load Databases widget. That shows a quick overview of how the top databases are performing at the moment - total number of average active sessions and a graph how this load is divided between the CPU/IO/Other wait classes.
With a click of a button, the screen changes to the new rectangular style performance graph, also showing the latest ADDM findings.
One feature request to Oracle - please add more lightweight skin and allow the user to configure how many databases the widget shows. I'd like to set that widget "stay on top", but the view with TOP 5 databases takes too much screen space.
Download the widgets here: http://www.oracle.com/technology/products/oem/widgets/index.html
Blog for these widgets: http://blogs.oracle.com/emwidgets/
Actually, this is the first application I'd like to have running on my mobile device...