How much did Apple make from your iPhone(s)? Let's say $300 every 2 years. How many apps have you purchased in that time? It's going to be less than $300 for most people, and Apple only gets 30% of that total, and has their own costs on top of it.
I have spent a decent amount on apps... but I spend to put on about 6 devices (iPhones, iPads, iPod touches for family members), and any new iDevices we buy.
That Apple recognizes and allows this behavior really tells me that they don't care about profit from apps.
Apps, for Apple, are features of the real product, the hardware. Hundreds of thousands of features where the competing hardware platforms don't compare as favorably.
It was the same with AAC DRM music on the iPod (when few other players at the time supported AAC, and none supported FairPlay DRM)... these were little land mines in a music library that prevented users from switching or even considering it.
