I recommend that those having battery issues (I'm included) try setting your 4s up like your 4 or 3G.
Start with a full charge.
Reboot!
Turn off all the new iOs5 stuff.
Turn on what you needed with your old phone.
Add new features one at a time.
I'm testing this today to see if it truly is a crap battery or just so many new network, GPS, Mail, iCloud activity that the phone is working a lot more and thus using more juice.
I'll report back.
Start with a full charge.
Reboot!
Turn off all the new iOs5 stuff.
Turn on what you needed with your old phone.
Add new features one at a time.
I'm testing this today to see if it truly is a crap battery or just so many new network, GPS, Mail, iCloud activity that the phone is working a lot more and thus using more juice.
I'll report back.