Neither Pegasos or Amiga ONE have Amiga soul, surely Windows XP boxes are the only true Amigas :-P
Seriously though, you can have similar arguments about other platforms: i.e. Apple, is an iMac running OS X really a Mac any more?! I would say yes, others would disagree, I know someone who refuses to run OS X because he thinks it isn't really Mac enough - whatever that means.
Personally I feel A1 is the real Amiga though, Pegasos is an attempt to create a new platform with an appeal to Amiga users, running Amiga software gives an instant resource pooI and selling point. I think we will find the two platforms will go in quite different directions in the end.