Stadelhuber on 06 October 2011
Didn't you try to force it?
http://www.wpcentral.com/force-mango-update-early-through-zune-software
Mango is great.
And there is so much more announced:
http://windowsteamblog.com/windows_phone/b/windowsphone/archive/2011/10/05/control-your-xbox-with-your-windows-phone-using-the-xbox-companion-app.aspx
