Rev. Chris Hudson ministers where Unitarianism is indeed Christian as a result of the surrounding culture. On Channel 4 he has a positive view of religion in Northern Ireland (I don't).
A new blog on inclusion in Unitarianism, written by Louise Rogers. I've added it to the reading list.
Unfortunately, for Changing Attitude, and its idea for inclusion, Church of England bishops will only admit women participant observers after the C of E decides in favour of women bishops. The equivalent now is that gay bishops already in the House stay in the closet.