One of the coolest features BlackBerry added in the BlackBerry hub is a simple but powerful button in the email overflow menu. If you are viewing an email and want to convert it into a calendar entry you can do it by selecting the “Invite to Meeting” option. That will automatically open a calendar entry with the same subject and text of the message as a note. It will also include the sender as an attendee for the meeting to send them an invite.
This is a great power user feature that I used to pay for on BlackBerry 7. Kudos to BlackBerry for including it!