Q 99 Sniper's Eye rogue talent. It says that you can add your sneak attack damage to anyone who has concealment, except total. Is this all of the time, or do they still need to be flat-footed?
A 99
It's not giving you a new means to qualify for sneak attack, it's letting you ignore one of the conditions that prevents you from sneak attacking when you otherwise could -- foe has concealment.
Now frankly, I think that rogue talent is complete garbage. For starters, rogues being worthless in shadowy illumination is bullshit and they should just get to SA in non-total concealment for free. Secondly, that talent is ranged only. If all you care about is ranged, just get the Seeking enhancement and ignore even total concealment completely anyway. Finally, there's some stupid feat in APG Shadow Strike or whatever. It gives the same benefit as this talent but is not limited to ranged. I still think it's a waste of a feat since
this should be something rogues get for free, again. But if you feel like wasting your resources (by that I mean, any reasonable DM would just waive the issue away, and if not, don't play a rogue to begin with in that game), at least get the feat so you're covered melee and ranged.
/rant