Other calendar apps like Google Calendar allow you to email all invite attendees at the touch of a button. In Boxer, you must add each email address to your address book before emailing which is cumbersome. There is no ability to copy the email addresses from the invite either.

This ability should be added so Boxer users can send quick messages (template or otherwise) like 'Running 5 minutes late' or 'Sorry can't make it, can we reschedule?'