They are a problem for Red Hat. And Red Hat is not linux, despite what they say, and despite what the media (and IBM’s ads) seem to conflate.
To my friends in the media, you are confusing a social movement with a single company – that social movement is all about choice, innovation and freedom. Not dominance or dependence. In that light, no innovation Sun delivers, in comp models or bits, can be anti-linux.
Let’s get specific. Let’s start calling a distro a distro.