Maybe ask Morrissey to hold a memorial concert and play some Derek Jarman's movies.
Someone straight needs to be a figure head so that people can't easily dismiss any apology as somehow tied to the agenda of a gay rights group.
At the other hand. The UK government can always say those standard lame excuses such as "because of cold war, we have to prevent Turing to be used by communists spies".
At the other hand, I wonder why gay right activists ignore Turing's story for a long time. I learned Turing's story pretty early on (I am just always curious of private lives of great minds since I was a kid)
That is fortunate. I wouldn't like Turing to become another archetypal wicked scientist in tv shows puppetry inventory. Compulsive schizophrenic Nash seducing boys, autistic Newton, insane Cantor crawling on the floor whispering "infinty, infinty" are enough for me already.
It costs a lot to operate and won't be able to run past the next few years without funding, but the Government rejected a petition on the subject (http://petitions.number10.gov.uk/BletchleyPark/)
Support for the National Museum of Computing wouldn't go amiss either.
Let us honor Turing's memory without making nonsense of the tough choices he faced.