Eventually, paying for (smart phone) apps may be more the exception than the rule, much like the web, but the business models that are evolving to make that work are often user hostile. On the web we see Facebook’s incessant push to dissolve privacy as they work on monetization. On the iPhone we’ve seen the rise of free-to-play, and other frequently abused attempts at monetization.

Ultimately, the users become the product, not the app.

Selling users to advertisers and pushing in-app upgrades/consumables is a completely different game than carefully crafting apps to maximize user value/entertainment. It’d be a shame if the mobile software industry devolved into some horrific hybrid of Zynga and Facebook.