The magnet scheme was interesting, although you'd think a smart guy like Walt would know better than to turn it up all the way. I get that something had to go wrong, in keeping with the themes of the show, but couldn't we have had it be something that didn't depend on Walt being stupid?
I'm very curious to see how Walt ends up with a new look and identity, though. Maybe he finally gets the money together for "the guy" who fixes identities. Nice that they planted the seeds for that a while back.
Not much else to say at this point. Things have only just begun!