They don’t exist in the on-premises space but in hybrid deployments, Office 365 Groups can be synchronized back to on-premises Active Directory via the AADConnect tool, where they function as distribution groups.
There’s lots of interesting aspects to explore about Office 365 Groups, including the recent arrival of support in Outlook 2016, which is the focus of this article.
I’m using i Cloud with Outlook to synch my Contacts and Calendar with my i Phone and i Pad.
This all worked without any issues until I upgraded to Windows 10.
We have not directly confirmed this yet, but 3rd-party documentation indicates that Outlook for Windows observes the non-standard setting in an i Cal feed to set automatic update frequency.
Google Calendar updates feed information once every 8 hours.
To save resources, the shared document library is not provisioned until the first time that a member attempts to use the “Files” functionality for the group.
All of the resources available to a group are accessed via the single group identity.
Outlook will periodically check the Google Calendar for updates, and if any new or modified events are found, they will be downloaded and displayed alongside with your Outlook appointments. Remember that the Google Calendar imported in this way is read-only, the lock icon is displayed in the lower right hand corner of all imported Google Calendar's events, meaning they are locked for editing.
Changes made in Outlook are not synced with your Google Calendar.