I don't think it necessarily is. I know you're saying this because a language or library from a big company is likely to be dropped, but occasionally one will l

I don't think it necessarily is. I know you're saying this because a language or library from a big company is likely to be dropped, but occasionally one will last a long time like Sun's Java. Just because it originates from an individual like PHP did doesn't mean for sure that it will continue to exist a long time and you'll be able to hire people.