Hi, The only way I know this is having installed a task manager. There would be no other way of knowing this. I have about 14 apps downloaded form the market. Not too many, but I was susrprised to see applications like shop savvy and My Backup automatically start up when my phone boots up. Whilst in the apps themselves, there seems to be no way of stopping this behaviour. Why would they do this ? Why is there no kill switch fro these apps natively for android ? It seems there is a lot of chatter about whether or not task managers are good for the platform, or whether we should just let android do it's thing on it's own. I'm really in two minds whether to carry on using a TM or not. It's for reasons such as shop savvy opening up on it's own when I don't want it to that I'm tempted to keep in, if only for my own piece of mind, and the ability to kill apps that don't need to be on. This MUST have a direct correlation with battery usage. Anyway, I have to say that I've had most platforms, iphone, blackberry, symbian, and Android really does seem to me to be the best one yet. I am extremely happy with my Hero. Griff.