Go to Bookable Resource entity in one of your solutions - or within Customizations (Settings --> Customization --> Customizations  OR go to Solutions if you have one)

Click on the Bookable Resource entity...Find the Outlook and Mobile section and UNCHECK the Read-only in Mobile setting.  Save and Publish the entity.  Go back to Bookable Resources and BAM...it now is editable.  I've notified Product Management and Support.  They are looking into it!