I'm sorry. I truly am. It was a stupid movie that I can't think of the title of but make him video diaries. Give him any and all the insight or the thoughts that come to your head. Read him your favorite books on the video. Digital storage is dirt cheap anymore and while it won't come close to comparing to living your life with him, if that's the most you can offer him, seize every means you possibly can. Write him your story, the story of your life. Your hopes, your dreams, your achievements, your failures, the memories you hold most dear...give him as much of you as you possibly can to KNOW you even if you're not there in the physical to be with him.

I hate that for you and I'm incredibly sorry...I don't really know what else to say. Whatever you do, DON'T GIVE UP! There's a saying about not going quietly into the dark night and that's spot on! Doctors make mistakes all the time and a prognosis isn't a sentence necessarily. Hang in there, man and as always, we're here to help in any way we can.