it's always been longshot's left eye, which would be drawn to the right of a comic scene, similar to looking into a mirror, that has glowed. only in ultimates did it change to his right eye, which is drawn on the left.
i hold to the belief that spiral stole shatterstar from dazzler's womb, via her sorcery, and cloned him, then put one in the future of the mojoverse and gave the other a chance at a normal life as benjamin russell. i hear there's a longshot arc coming up in the new x-force series, so i guess we'll see there. or, i hope so.