Ah ok, I checked the Haiku source and I think this works like the original Binder concurrency stuff (see http://www.osnews.com/story/13674/Introduction_to_OpenB

Ah ok, I checked the Haiku source and I think this works like the original Binder concurrency stuff (see http://www.osnews.com/story/13674/Introduction_to_OpenBinder_and_Interview_with_Dianne_Hackborn http://www.osnews.com/story/13674/Introduction_to_OpenBinder...). Android's concurrency framework (as well as Mindroid) is a refined version of Be's concurrency APIs.