I\'m not finding Apple\'s documentation very helpful for actually getting data with a people picker, and there doesn\'t seem to be much other information on the internet :( I as
Use
ABMultiValueRef emails = ABRecordCopyValue(record, kABPersonEmailProperty);
After that, you can use the ABMultiValueRefs API method calls to get email address.
EDIT -- This should give you email
CFStringRef emailId = ABMultiValueCopyValueAtIndex(emails, identifier);