hello. if i used my apple id to set up find my iphone on my iphone 4 when i bought it and that is the same apple id i use for itunes and for registering products and even logging into this board will i have a problem updating my phone and starting icloud? i saw where some people were getting an error of 'that email is already in use' or something like that. i'm wary of updating because of this. thanks for any help.
MACBOOK PRO 13 MID 10, Mac OS X (10.6.8), MACBOOK PRO LATE 11, IPHONE 4