A few tipsters have dropped us notes (thanks!) that on Apple's Developer Tools page, there's a new tool. Along with Xcode and Dashcode, there's a new, very pretty app called Xray. The flavor text itself says the app takes "interface cues from timeline editors such as GarageBand," so what we're looking at here seems to be a realtime application tester and analyzer.
The three windows in the screenshot show stats on "Network Traffic," "CPU Load," and "Reads/Writes," and Apple also says devs will be able to track user events and even the OpenGL video driver. Looks like it will bring all the new tracking tools and analysis junk (technical term) together in a browsable, graphical interface, which means an easier time for devs, which means better apps for all of us. Groovy!