First of all I must say that I am not a fanatic person for technology objects (I prefer and love the nature life :B)... But if I have to choose one of them I choose my cell phone.
I got it (my BackBerry phone) 6 months ago approximately.
I use it usually to call my friends and family, I use the whatsApp application constantly and finally I use it as my alarm everyday sadly... =(
Unfortunately I have to use my BlackBerry everyday (because is my unique alarm)
I like my cell phone mostly because it allow keep me communicate with my best friends when I can’t see them.
Without my BlackBerry phone I think (and I am secure to this) that my life would be the same and even better!! because I would have less leisure time... My unique problem would be stay sleeping and arrive even more later to university... :P