I googled " apple id request driving me crazy" and got almost 2million hits...any developer who can create an app for iphone that will automatically complete the password for apple ID could make millions of dollars inside 6 months.....it is severely needed.
I agree that Apple's own software has fallen to the way of BIG COMPANY fragmentation. A single password should be passed to all services to the phone. Whenever I update my iPad, I get asked for AppleID and password, agree to agree to something then agree again and finally password one last time, just to irritate the **** out of me.
I'm fairly certain Apple lawyers have added layer upon layer of safety for the company, but sometimes the chief just needs to stand back and say, "Hey, this kinda sucks, let's fix it."