Great idea, Gordon! And its always good to see Fabian ideas getting a hearing in Downing Street.
Grice links the behind the scenes thinking about life after Bush in Downing Street with the world after Bush debate kickstarted by the Fabian Society.
Although aides insist the Prime Minister has a good working relationship with George Bush, the outgoing President is seen as an obstacle to reform.
Since think-tanks need to start thinking ahead, the post-Bush debate we began back in Summer 2006, in the late Blair era, when our Gordon and Hillary cover image offered a wide range of hostages to fortune, with several publications and events ahead of Saturday's Change the World conference.
As Grice says:
it's tricky territory and there's only so much Brown can do above the radar - for now, at least.
But we need to keep the public debate going too.
As I wrote in Tribune this week
If there can only be new thinking on foreign policy behind the scenes or of it can only be discussed in code, this limits the chances to re-engage and repair the political damage.
On which note, its good to see David Lammy quietly rooting for Obama in his Comment is Free blog post on Saturday's conference.
There is part of a series of Comment is Free blogs with contributors reacting to the event.
UPDATE: I've chipped in on the Independent Open House blog site with some advice for Gordon Brown on his world after Bush strategy.