Having been badgered by my phone for about a week to upgrade, I finally accepted the request and upgraded yesterday. Performance is now abysmal on the basic things - dialler won't link to my contacts, I can't dial back a missed call, it takes an age to go from a notification to the app (like email, facebook...), and power consumption has gone crazy.
Am I the only one suffering this? At present my phone is unusable, as I can't recognise who's calling me, and can't answer their calls or phone them back...
