Mine is working. On Passport with new leaked OS (10.3.2.281), but worked on previous OS versions, too. I have done nondestructive updates so I am probably sitting on my original settings.
I only have one calendar, though.
No issues with calendar, contacts, email.
I use two step authentication.
Chaddeus I am jealous of your username.
Best,
Also Charles
Posted via CB 10 on my Passport SQW100-1 sporting 10.3.1.2582