The icon issue has been corrected in our latest Beta version.
Exchange accounts will now show the Invite icon, instead of an attachment icon.
If you are interested to try, please visit our G+ Beta community: https://plus.google.com/communities/102581534035171613663
An error occurred while saving the commentIan Douglass commented
Same goes with "New Time Proposed" for exchange calendars... No way to tell what time they proposed or any way to accept, decline, etc... Would love to have that feature or somehow integrate with installed calendar apps like Sunrise.