Really nice graphics. It might be interesting to be able to select a region and have a pop-out that zooms into that region and maybe shows additional information. For example, showing cpu performance I would like to select a region where performance declines and get a pop-out that shows a more detailed view and includes network, disk access and memory statistics. I am sure there are many more uses though. Keep up the nice work!

Edit: Not really the purpose I know but it was just something that struck me as a possible use case.