Hi!
It seems incredible but I didn't found anywhere code on how to delete a contact using the new 2.x method.
According to the official docs this should work but it doesn't (returns 0):

getContentResolver().delete(ContactsContract.Contacts.CONTENT_URI,
ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME+"="+name_to_delete, null);

Anyone knows how to do this simple task? Thanks in advance!