Bingowings said:

The dumb bit of Iron Man 3 was blowing up all those useful suits as a sign of commitment to Pepper.

A) How does that work? Domestic partners don't want you to blow up expensive, useful stuff generally speaking. Helping her build her own suit to manage her un-fixable superpowers (why would you want to be cured of being able to bend super tankers with your bare hands?) would make more sense.

B)If removing the shrapnel was easy enough to make a snap decision about, why didn't he make a snap decision about it earlier...like when the reactor keeping it in place was killing him?

C)We know he will just spend the rest of his marriage replacing them and probably pissing off Pepper in the process.

Stayed with MAOS but have attempted to avoid spoilers here.

It does get better, nice to see Deathlok turn up (I loved those comics as a kid). It still feels like Torchwood done better and not quite like the comics I remembered. I wish the Marvel and Doctor Who universe would merge so SHIELD and UNIT could team up against some sort of otherworldly menace.

Yeah, that was the dumbest part to me. It's supposed to be some inane message about how love conquers all and how Tony's transcended his need to hide behind armour and blah blah blah, when really all it does is kind of emasculate him (women always tend to "ruin" men in these movies by changing them from who they are as a sad excuse for character development) and leave him without his ability to participate as an Avenger. At the end he talks about always being Iron Man as he chucks his reactor, but Iron Man isn't really Iron Man without the whole iron man bit.

Also, I believe he took the Extremis formula, modified it (which stabilized Pepper), and dosed himself with it in order to survive the surgery to remove the shrapnel, but it's just not explained very well in the film. I could also be wrong.