Very useful app to help you see what is happening with your phone behind the scenes. I installed this in part to help me figure out what was going on with my battery life and awake time. My Hero was expierencing 100% awake time, and my battery life was awful. I had tried to use task killers, and even the stock Android 2.1 running process list, but nothing I did helped. I finally found out the cause of my issue, and believe it or not it was the stock calendar app. It was running 100% of the time since I last rebooted my phone. I was able to self-diagnose my problem and resolve it with the help of spare parts. In addition, there are a number of additional settings that can be controlled through this app, that may not be accessible through the Android settings menu.