Helpful, our local Moetza Datit put out a sheet about various dinim for the 9 days, erev Tisha b’Av. Tisha B’av, and the day after. It mentions that minhag Yerushalayim is to wear tallit and tfillin during shacharit on Tisha b’Av. I do remember seeing this when I was at the Kotel a few years ago on Tisha b’Av morning.
If I remember (and there are any left in shule) I will bring it home tomorrow and list the source quoted.