"Beyond The Rim" is a term that comes from the Sci Fi show Babylon 5. It's a term that means respect and admiration for those who have passed onward to a better place.
Dean Jackson is a name you may have seen or read or heard of if you were a Braille Note user. This gentleman was one of the most knowledgeble people I knew of in regards to the Humanware line of note takers. And he always seemingly found an answer to whatever ailled your system either on the User Lists or in other venues. It was this care for detail and kindness to any level of User that I found to be just amazing.
It has been recently reported by Jonathan Mozen that Dean has passed beyond the rim. My condolences go out to Dean's friends and family. We have lost another strong voice in the world of AT and his contributions to our industry won't be soon forgotten.