You sound like they impose DRM for the sake of DRM.

Are you kidding me ? Use a little common sense.

They impose DRM not to piss off the users or for principles, its becuase it makes the platform a selling point for the PRODUCERS of the DRMed content, whether that be an APP or any other media content.

And judging by the range of apps and content available on the iPhone platform, I would say they have succeeded extraordinarily well.

Put down the bong pipe of "principles" and come back to the real world and FOLLOW THE MONEY. They do it because they want the content to sell for $$$, not because of some meglomaniac decison by Jobs or Hollywood. Remember before digital tech became widespread there WAS no super restrictive DRM. DRM arose in response to digital copying tech becoming available.

If you have to blame anyone its the content PRODUCERs for the platform, not the platform itself.

Note this is a separate issue from whether DRM works or is counterproductive and pisses off users. Remember that DRM COSTS money to implement and maintain, and if content producers can MAKE MORE money without DRM (i.e. DRM costs more to implement then it brings in), well why would they keep DRM ? its an extra drain on profits.

Companies are out to MAKE MONEY, any other consideration is irrelevant, I find discussions of "princples" or assertions of meglomaniac CEOs hilarious.