Macs can't be compared to linux (or even windows) for hardware support, since official mac hardware & software is provided/supported by the same vendor, while linux is expected to work with
everything. Even given that, I really don't understand your argument here. I could equally say "Wifi generally works great across all distros with a fully open source driver stack". And any problem with buggy or non-existent closed source drivers is "a driver issue of the manufacturer".
Have you got any numbers on regressions in updates for Ubuntu (or any other distro) vs. Windows vs. OSX? Because I completely disagree with that last sentence.
I distinctly remember upgrading XP to Vista when the latter was released, and having a heap of hardware trouble. Even my old scanner (Canoscan lide 20) still doesn't work with vista x86_64 (no 64-bit version of the driver). It works perfectly with linux, and has done with all the latest versions since I've had it.
I haven't used nero much, so can't pick on that one
