SnapManager for Exchange version 7 will support Exchange 2013 and it is expected in the April 2013 time frame. SnapManager for SharePoint 7.1 was just posted to support download site. It already supports SP2013! http://support.netapp.com/NOW/cgi-bin/software?product=SnapManager&platform=SharePoint
NetApp Global Support Center: 888-4NETAPP (888-463-8277)
Since this is a public forum I will not divulge specifics, but both SDW and SME will be out in the next few months. Please be patient. If you are interested in participating in the beta program please send me a message (using the communities) and I will put you in contact with the right persons.
To be honest I don't have intention in participating beta testing but I do have clients that have Exchange 2013 and as far as there is no support for it by SnapManager we deliver another kind of array's with another software. I am sure that I am not alone in this position as partner of Netapp.