Yes, google-calendar invitations sent to gmail-address, opened in Mail, whether by opening one of the .ics Attachements (I get 2 attachments in each invite)
1) Show up in iCal for ~3 seconds while the "Updating..." message shows up at the top of iCal
2) and then immediately disappear without a trace.
Setup
15" Macbook Pro, 10.7.4
iCal 5.0.3 with only 1 account, Google Calendar with CalDAV setup in order to make the different colors of my google calendars sync with nearly identical colors on iCal.
Apple Mail 5.2
Multiple Google Calendars, invitations sent only to the "primary" calendar - the default associated with 1 gmail address
Solutions that partially work:
1) as proposed by ATXIII above - using the QuickLook Apple "recognition" abilities - when you hover over the date - it recognizes it as a date and the QuickLook down arrow appears - clicking on that creates a calendar event on the said date and time
- THE PROBLEM: this doesn't actually recognize this as an invite - sooo, it will only create the invite in the default calendar (if the invite came to a different email address associated with a different calendar, you'd have to manually change that). Also, it doesn't recognize this as an invitation...so it doesn't show the list of invitees.
2) a similar solution - Mail will recognize the "Maybe" and "More Options" hyperlinks as web hyperlinks and you can get a QuickLook view of the webpage by hitting the downarrow. This is a mini-less-than-perfect view of the google calendar invitation webpage where you can click Yes, No, Maybe
-THE PROBLEM requires you to be online -- also is not a seemless Mail-iCal solution -- is actually using web google calendar, so you'll have to refresh iCal to sync from google calendar down to iCal
3) the solution proposed by adavison above --- turning off time zone support and having google calendar autoaccept invites
THE PROBLEM - the main problem for me is I don't want to autoaccept invitations - I want to be able to decline or say maybe -- it's unnerving to have my calendar buzz me a reminder for events I never really planned for
--also again this is not a Mail-iCal solution --- it's using google calendar as the mediary - again the online/offline issue, though less notable since
WHAT I WANT: an explanation as to why opening a .ics file doesn't just create an event in iCal without that event disappearing seconds later?