Anyone know of any Judeo-Arabic translations of the Bible (i.e. Arabic in Hebrew characters)? It would be great if you could link me to them as well.
Hebrewbooks has a Tehillim: http://www.hebrewbooks.org/40258
Rav Saadiah Gaon's Tafsir (Arabic translation) on the Pentateuch is available on Sefaria, here and a manuscript of his Tafsir on Isaiah can be found in the National Library of France, here. Other Tafsirs on the Pentateuch, Lamentations, Esther, Job, Isaiah, Proverbs, Ecclesiastes, Ruth, Song of Songs and Psalms can be found in the Judeo-Arabic section of the Genizah site (sign up for free required).