There is a an app that runs on the Storm 1 & Storm 2 called StormStat.
This app shows battery, memory, radio and WiFi information. A simple app I wrote to learn how to do BB programing and it has been running around on the Internet since January 2009 (and downloaded ~ 50K times).
Please feel free to download it and try it if you like - it's free.
Also, don't be afraid to try it on other BBs - It seems to run fine on 9650 (new Bold) and 9630 (Tour).
If you try it on other models and it works (or doesn't) please post a follow up status.
You can find
StormStat here
Thanks and enjoy