Well, as soon as Google started letting other domains host their email services through them I have had Intrasection hosted there. Better spam protection and better kid protection. Boy did Joshua Morrison LOOOOOVE to flip that big old red switch.
Well speed up to a few weeks ago, Intrasetion got Google "+" ified. And all kind of bells and whistles started going off.
Now, from my phone, I can put into my Intrasection.com calendar (Pick Phil up from Airport). I can put in a 30 min warning notification, I can even put an estimated travel time when I invite my lovely wife to the meeting invitation...
Then in a few seconds (since my account is the admin of the domain) I see (in a different color) my wife's calendar entry. Tap on it, click "Accept" and poof, her phone will remind her to do something that I might forget to ask when I am physically close enough to ask her about it.
Kind of cool I must say....