Absolutely not, at least not on compiled form. It's not all black though: this problem is usually offset by the fact that most Linux software is open source an

Absolutely not, at least not on compiled form. It's not all black though: this problem is usually offset by the fact that most Linux software is open source and can be recompiled against the new platform source. You take some, you give some. The result is quite different but looks the same to the end user.