All of you people are encouraged to ask nvidia to release all their linux/freebsd drivers as open source. I've created an online petition where you can sign it, later I'll send it to NVIDIA by snail-mail. Please, consider it seriously, it's very important issue. If we can get NVIDIA release their drivers open-source, kernel hackers will quickly fix many bugs and boost their performance, also possibly simplifying installation process or converting the driver architecture to standard DRI.
Here's the petition: