It's not just with the consoles. I used to develop Lotus Notes applications. The problem with Notes was that the barrier to entry for developers was too low such that it hurt the platform, and it made it hard to distinguish good developers and good apps from the chaff. When a bunch of unqualified developers fill the world with junk it gives the entire platform a reputation as being junky.

I now develop iPhone applications, and I personally agree with Apple in this respect. If you want to develop iPhone applications, spend some time and become proficient with the tools.

And, @raganwald is correct that it's still lock-in, it's just a matter of where the lock is.