Haha, this conversation is funny. It reminds me of when me and my buddies call each other out and argue over semantics!!
Umm, well, any software changes in retail sold items like Xbox's would definently be hacks since the development kits and the kernel code are not supposed to be available to the public.
But since we are talking about a Microsoft product... I think any change in their code would be an improvement and thus a repair and not a hack!!!
