I installed Google Voice on my Bold yesterday, but I'm still playing around with the service and not using all that often. I noticed that the app starts up with the Bold. It seems like the battery drains faster with this running, so I exit out of the app whenever I reboot.
Is there any way to prevent this from starting up when you boot up your BlackBerry?
I once asked RIM if it was possible to toggle the autostart flag of a module after it's installed, and the answer was "no". You can read the flag but not change it. Otherwise I'd write an app like what you have in Windows where you can select which autostart items to enable and disable.
The autostart flag is set before building the module and as far as I know once it's built, it's going to autostart as long as it's installed.