Originally Posted by Inkling
... The trouble comes when Apple wants to grab 30% of the retail price not just when an ebook is sold through their iBookstore but when it is sold through Amazon, B&N, or Sony apps. In those cases, the ebook is still being processed by Amazon or the others, so they're still earning their 30% legitimately. But Apple is reaping a 30% income for handling a 3% credit card processing fee. That is what is grotesque. ...
Originally Posted by gozar
One misunderstanding is that Apple is only providing payment services for in app purchases. Storage, bandwidth, etc. are paid by the vender/developer.
The whiners aren't complaining about the exposure the App store gives developers, their complaining that Apple wants 30% of your subscription rate while offering little else except credit card processing ...
The misunderstanding here is your propositions that Apple is running a fee for services system with the App Store. They aren't. The App Store is a revenue sharing service. Consequently, your arguments are entirely beside the point. Anyone distributing software through the app store agrees to share 30% of their revenue with Apple. Offering what is essentially a shell app for free, one that offers no (revenue generating) functionality without content that must be purchased separately, is, quite simply, cheating on the agreement you signed with Apple by hiding your revenue.
Frankly, it's hard to understand how anyone could be making this argument at this point, so your posts smack of willful misrepresentation. That your analyses always seem to revolve around a premise that once in-app purchasing must be offered, all purchases of all content will be made through in-app purchasing lends credence to the impression that your desire is to misrepresent the facts. (The alternative is that a) you have no understanding of what you are talking about and b) haven't bothered to put any critical thought into your "analysis".)
Also, the example of Dropbox is ill chosen since it's not at all evident that the enforcement of this policy affects Dropbox in any way. To the contrary, storage space on a server likely falls under the category of "real world goods" for which developers are prohibited from using Store Kit. If anything, Dropbox would seem to be in violation of the guidelines if they did offer to sell storage space using Store Kit, so this shouldn't affect them at all. Note, this is exactly like any number of apps selling "real world goods", such as Amazon Mobile or eBay Mobile, which are not affected.