Apple ID Password-How To Always Prompt iPhone

I would like to be prompted for my password each and every time if possible.
Apple would have to change this behavior. If they did, then the users that update or download several pieces of content in a row would most likely start complaining. You can make your views known here:
http://www.apple.com/feedback/iphone.html
MacBook Pro

Thanks for replying.
I agree that most users would want to retain this feature... I just firstly wondered if you could switch it off in settings (either on the device or in your iTunes account).
Secondly (assuming its not possible) I think it would be good if Apple allowed you to set the password timeout, so you could have it force you to enter your password each time, or remember it forever!
iPhone 4 iOS 4

I just firstly wondered if you could switch it off in settings (either on the device or in your iTunes account).
No.
MacBook Pro

Although it doesnt answer your question about making you enter your password every time, this is a common problem for parents and you could use the Parental Restrictions built into the iPhone instead. Go to Settings > General > Restrictions and choose Enable Restrictions. Set a passcode and then change Installing Apps to Off and In App Purchases to Off. You can now give your child your phone and he will not be able to make app or in-app purchases. You might also like to enable some of the other restrictions at the same time. You can disable restrictions at any time when your child has finished.
Hope thats helpful
imac 27" i3 Mac OS X (10.6.6) iphone4, ipad, apple tv

Downloads for purchase are charged to your Apple ID. For additional downloads made within the next fifteen minutes, you don’t have to enter your password again.
Wait at least 15 minutes before allowing your toddler access to the phone.
27" iMac Mac OS X (10.6.6) iPad+3G, iPhone 4, 6 iPods