contactsgmailios
I have groups in my Google Contacts for sending emails to sets of people via the web interface on a browser.
I sync Google mail and contacts onto a couple iOS devices via Microsoft Exchange.
How can I send an email to a google group from iOS? Neither the built in mail/contact apps have any reference to my groups, and I cannot acces them via the web browser (mobile version), nor the official gmail app (which seems to be a resigned web interface).
When I receive an invitation to my Gmail account, it auto populates in my Google Calendar with a question mark beside it.
Unfortunately you can't accept - however it will now show in your calendar.
If the invite is sent from gmail, there is a link to select if you want to accept the invite.
Not exactly the full answer you're looking for but, hopefully this helps.
You can create iCloud contacts that merge with your GMail contacts. The iPhone will collate the data from both the GMail contact and the iCloud contact. I have this enabled for Hotmail:
Best Answer
Unfortunately, there's not a way of doing it with the native iOS app. Try using the Gmail app (which I personally prefer). If not, there's this little workaround: http://red66.com/2009/07/how-to-send-group-emails-from-your-iphone/
The gist of the workaround is to make one contact for the group and add a comma separated list of emails to the singular email field for the "group contact"
This doesn't allow you to leverage arbitrary groups and does require some manual setup, but once that's done you can email limited group sizes from iOS without needing a computer.