Does anybody have the details? From what I've heard on the news,
intersecting runways were in use and planes were cleared for takeoff on
both. A copilot on one saw the other and made his plane hop off a bit
early, narrowly avoiding the other.

NTSB preliminary report:
http://www.ntsb.gov/ntsb/brief.asp?e...24X00863&key=1

News links:
http://www.boston.com/news/local/mas...ng_retraining/

http://www.boston.com/news/local/mas...jets_at_logan/