Why would the general public want more than 1 OS on their phone? sure you could get access to more apps, but it would just be inconvenient. not to mention the market research for why the phone is bought would be made more difficult.
Jobs wouldn't be saved, the majority were let go because they weren't working at the standards elop wanted. Sure it was a tragedy for many, but it's a capitalist world so you have to take it as it goes and think before you create a new thread