I am watching the first X-Men movie right now (I saw it once on its original run and remember nothing about the plot other than the Rogue and Wolverine bits), and Magneto appears to have figured out the quantum electrodynamics bit. Granted the only continuity in these movies consists of the Xavier mansion's bafflingly endless supply of grey flannel hoodies(!?).

I don't read the comics themselves, mostly, I have friends who do that for me. XD; Then I just ask them questions, because I'm pretty sure any idea I can come up with has been done canonically over the course of 50 years, short of the ones that are really not PG13. (eg. "Has anyone ever offered to put, like, lasers or a rocket launcher or something on Charles Xavier's wheelchair?" Ans: "Yeah, that space princess he was banging once")