I know that this is still a beta version of the upcoming OS, but I would have expected Microsoft's "Premier Partner" to support these features so that beta testers could verify it's functionality.  I love my windows phone and was excited last year when AT&T was announced as the premier partner.  Since then I have become less than excited about that title since it doesn't appear to mean anything really to the consumer except that you offered the most options for phones (3).  Please tell us loyal customers that you have plans to support this feature prior to the RTM of WP Mango.