Originally Posted by NateEssex
I guess I should have explained a little better...
On your wife's phone, go to Settings-->Mail,Contacts,Calendars-->Accounts (MobileMe), and only turn on Calendars. I also use the Find My iPhone...it's awesome

Thanks Nate, but that is part of my problem. Since my wife does not have MobileMe, that option is missing under Mail,Contacts,Calender>Accounts. I guess that's why we aren't getting each other's calender entries because only one of us has MobileMe which was the reason for my original post.
Thank you for your help!