"Microsoft and carriers have started rolling out a service update that fixes <a href="http://www.zdnet.com/blog/microsoft/windows-phone-mango-users-reporting-disappearing-keyboards/11018">disappearing on-screen keyboards</a>, among other issues reported in late 2011 by Windows Phone Mango users."

Also fixes Gmail syncing issue, digital certificates, some email threading and others.

That October launch is looking on track.