Internals is an app that all power users of the BlackBerry devices should have. Even general users of the device can have. This is a perfect tool for monitoring and moderating the resources of the phone. Internals gives complete info about all the resources of the phone like battery, RAM, running tasks, etc. You can also get an idea about the signal strength.

The app shows all this info in different ways. You can get all the info on your screen in a textual way or can have graphs refreshing after a fixed interval to give you the latest info. Each item of the app on the screen will have its own different options and customization settings. So you can individually select how the app should represent each item.

Each meter gives you very detailed info about the respected stuff. If you consider the battery meter for example, you will get the percentage of charge it has right now, the temperature of the battery, the voltage output the battery is giving now and stuffs like that. So you can control the behavior of your phone to optimize its performance.

You can have a task manager show your a list of currently running apps, so that you kill the apps that you dont want but are running in the background eating up the valuable resources of your phone. Beta testers usually this app a lot to get the stats of their apps and optimize its performance.

You can get Internals for your BlackBerry from the App World for $7.99.