The new Labour leader annoucement
Is due at about 4.40pm. The last YouGov poll of Labour members and trade unionists had the Miliband brothers neck and neck. Ed Miliband was marginally ahead - but they were within the margin of error of each other and it could easily go either way (especially since MPs second preferences are still largely unknown, though Left Foot Forward have since managed to get some info from MPs backing Abbott, Balls and Burnham).
The Westminster village seems to have decided that Ed Miliband will indeed win, and the betting markets have him as heavy odds on favourite. However, there isn't any sign of firm information (Laura Kuenssberg tweeted earlier that even Labour's general secretary wont be told the result by ERS until 3.30pm, and ERS themselves are unlikely to leak), so it should really still be regarded as too close to call.
Feel free to use this thread to discuss the result (but please, try to stick to the comments policy and lay off the posts greeting the new leader as either the coming of the messiah or the final nail in Labour's coffin!)
UPDATE: The result is, as everyone will now know, Ed by a whisker. That was stressful!