OK, let's try and turn it around: Has any market, anywhere, at any time been hurt by increasing interoperability? The usual effects have always been bigger market, more choice, more economic viability, and new uses for technology.
Having said that, although I detest DRM in all its forms (because nothing in DRM makes my life easier, as a consumer (in theory -- read on)) if I measure the impact that Fairplay has on my life, Apple has actually done a pretty good job so far.
I've probably bought a couple of hundred songs from ITS, and use it in various ways.
BUT, there are a lot of songs that ITS do not have - and that's when I go the p2p, library CD or whatever route.
I don't mind the 8dkr (denmark) that I have to pay for a song - the defining point for me is convenience. If there was NO DRM whatsoever, I would still buy from ITS since it's much easier than p2p.
I think Apple gets the point. The labels haven't yet. Every time we've pushed the technological barrier RIAA/MPAA and others have screamed bloody murder that it would destroy their industry (remember vcr's when they first came out?), and every time the market has just increased by orders of magnitude.
Is the ombudsman right in this case? In theory I think it is, if you view DRM as an artificial restriction on consumer rights. However, I also think that we are in a transitional period for intellectual property rights, and we've got a good decade to go before this has played out.
I'd rather be in the Apple camp, where I after all have technical possibilities for migrating my data (burn CD), than the Vista camp where draconian DRM has been integrated in the OS itself.
As an aside, there's a hell of a difference between applications and data. The analogy of wanting a program on the WII to run on an XBox doesn't hold water. MP3's and document files, on the other hand is a different matter.
my .02