It's true on Linux as well. I upgraded my work machine from Ubuntu 11.04 to Ubuntu 12.04, and my VMWare Workstation 7 stopped working. (The kernel modules it uses are incompatible with newer kernels.) There are some third-party patches that are alleged to make it work, but I couldn't get them working quickly, so I just downloaded the version 8 beta instead. When that expires in October, I either have to pay for version 8 or retry hacking version 7.