User blog comment:Jenburton/Coming Soon: Message Wall in Labs/@comment-166269-20111025030057/@comment-1656630-20111025170502

The product managers have looked at LiquidThreads, and they've been watching that project for the last few years. I don't know all the details of their decision-making, but i do know they made a calculated decision not to use it as the foundation, and they're still confident in that choice.