spoilers:end of spoilers
The split of Peter and Spidey is indeed the fault of the Iso generator. Peter and Spidey discuss the perks of being split in two. Spidey goes off to fight crime while Peter spends the next day helping Aunt May and hanging out at the bowling alley with Nora, Randy and MJ. The Tri-Sentinel attacks and MJ asks Peter if he should head off, but Peter says no. Earlier, we find Peter went to ESU where he discovers from Curt that the two mice affected by the iso generator exhibit different skills...one is more energetic and active, doing various tasks, the other is quiet and passive. Peter deduces he's been split into a powerful and responsible half. Meantime Spidey battles the tri-sentinel and clambers inside of it to toy with it's wiring, which sends it crashing into the street
The issue was ok, decent fight scenes and Spidey using his smarts, a mix of hard and comic science, not sure if I'm ok with MJ being fine with Peter's actions in this one. The comedy as Peter and Spidey were talking through their situation was very bad and almost unlike them.