What Jake Did.
After Jake got the letter from Hope, he used one of the feathers to wish her luck. Then he made a point of finding everyone from the Shitty Island Timeline and telling them personally, and then gave each of them some feathers so that they could keep in touch with their angel. If they asked to read the letter, he let them. Then he checked on Neville.
Then he went and found his Sunila again, and considered getting really quite drunk.