Is there an app that tracks CPU and/or radio usage? There are times when I pull my Pre from its pouch and find it quite hot and the battery nearly dead after only a couple hours since it was charged. I'd like to know if it's an errant app that I can be sure not to leave running. It may be Verizon driving my phone to connect to a far away cell, it may be that I've got too many apps running (maybe some web page is constantly streaming ads at me).
I've seen in other posts the suggestion to use 'top' to check CPU usage, but isn't that just a snapshot rather than a cumulative tool? Even if it's cumulative I think it requires some kind of terminal access.