the best reason to upgrade to 4.2.1
"find my iPhone"
now free access at mobileme
got to work didn't know where my phone was. logged on at work PC. shows my phone is still sitting at home. now i can stop worryiong that is sitting in a gutter in the rain somewhere. even if it was, i could still GPS track it, or lock and wipe it.
even send a txt message and warning beep to a thief. "Yo, bitch! i'm tracking your ass down now."
or just covertly track your spouse
