The Hamas website published a letter written by Gilad Shalit to his parents. I do not think this is the same letter as the one delivered earlier this month – that one was undated and this one says “June ’08.”
The Hamas Al Qassam website is using this letter as supposed proof of its humanity, although Shalit does say that he is suffering both physically and psychologically. He also calls for negotiations for his release.
(Dave, if you want to translate it here, feel free.)