"That's only true if your terms of employment are written with a clause like that."

For many potential investors, that won't be enough. They won't touch you without ironclad assurance of clear ownership of IP.

I stand by my original comment. It doesn't matter who's right or wrong. Can you really afford spending any time in your first 2 years on legal matters regarding IP ownership? Believe me, there are people out there that will do ANYTHING to steal from you. Why tempt them?