All new laptops should be sold with a fire extinguisher!..........
It won't be just Dell and Apple, and it won't be just laptops. Lots of things (like, everything) use Li-Ion batteries, and many of them had some manufacturing... uh... difficulties. It isn't just Sony batteries, either. These guys (Sony, Dell and Apple) are just getting out in front of it. There may be a real s#!7storm to come.