I recently upgraded to the newest software on both my husband's iPhone as well as mine. Now all of a a sudden he is sharing contacts with me (i.e. our contacts merged), as well as reminders, and God knows what else! How do I make this stop????? Btw, everything was fine before I upgraded software this weekend. We shared one iTunes account and had both iPhones, an iPad and an iPod Touch on it. Never had a problem till now!