Our friendly OS project Haiku gets accepted every
year, so being
 an
 OS is not a problem.
 Wine is certainly accepted every year from the beginning, and this
 year is not an exception. So it's definately not a problem of
 "legal
 fear" of Microsoft. 
 In the same spirit of sharing from the FOSDEM invitation, I'm sure
 we
 could find some projects on Haiku that would benefit ReactOS as
 well.
 Some time ago I talked about the webcam driver I wrote, which could
 likely be made portable. Another developer already started adding
 UVC
 support to it, so it'd likely be interesting to ROS as well. 
  Thanks a lot, but
this could limit your own participation, since
 number of slots is usually very limited. It's really nice to offer
 this from your side.