OpenEmbedded
 The Problem (B)
 
 What is the Problem? (Variant B)
  You build an embedded device
  You decide to run linux
  You license a commercial embedded Linux variant
      you will most likely end up with something stale like kernel 2.4.x
      you will have to spend a lot of money on it
      you will still require quite a bit of porting
  Your users will never get the source packages ("SRPMS") to it