([lemma=the] [lemma=reactor])? [lemma=stack] [lemma=for] □
([lemma=the] [lemma=reactor])? [lemma=stack] [lemma=for] [□]
([lemma=the] [lemma=reactor])? [lemma=stack] [lemma=for] □*
He claims that the software stack for a Linux smartphone will cost significantly less than one running Windows Mobile or Symbian once advantages of scale come into play .