i beat the game recently, the ending was terrible, in any case.... 
  
1: Darth nihinus: was he just trying to wipe out the Jedi, is that all his significance?? He has no lines in the entire game...i mean, who the hell is he?! And for a sith lord, he was pretty damn easy to kill. 
  
2: The exile: Occasionally, he was referred to as a sith (ie Onderon palace siege, when one of the soldiers say "they have a sith with them!"), is this only if you take the dark path? Also, what's so special about the exile, i know he can make force connections easily, but whats all this about him creating a hole in the force by killing all those people on malachor V? Also, hwo was his command of the force taken away from him? 
  
3: Darth Sion: Kreia's apprentice, i got that, but why does he want to kill her? 
  
4: Atton: Kreia called him a 'murderer' who did he kill? 
  
5: mandalore: is he caderous ordo from kotorI? thats what kreia called him 
  
6: who and what are the True Sith? 
7: when was trayus academy built? after the mandolorian wars? who built it? 
  
8: The exile said he turned ont he Jedi along with Revan to save  'countless civilians from being killed' how did turning on the council accomplish this. 
  
9: is when the exile 'looks upon visas' with force sight, is this the closest to romance the exile gets? 
  
10: is kreia from the same planet as visas? 
o and btw, have you ever seen a female wookie? 
  
  
sorry if thats too muh, its just the ending was so abrupt and uninformative.