This is a slight of argument, to intimate that Apple's position is to somehow control the direction of the web through lack of choice. This is misleading at best and, in my opinion, outright dishonest.
Apple has one of the best mobile browsers on the market. Nothing comes close to touching it. They also have one of the best implementations of allowing so-called "web apps" available to iPhone OS devices around. This is the open web. These apps can be and frequently are available to other devices as well, because they are based on standards. To say that Apple is closed is just a bitter way of saying that Flash has been shut out of the equation that is the open web: HTML5, canvas, SVG, CSS, Java Script. Apple does not control this any more than Mozilla, Microsoft, or even Adobe, who is also a member of the W3C that controls these open standards.
Trying to make the link between Flash (closed) and the web (open) is ridiculous. Being apart of the open web does not make Flash open. Pure and simple.
On the other hand, Apple also has the proprietary option: XCode, Objective-C applications. These are, by definition, closed and Apple (and Steve Jobs) makes no qualms about this. It is their platform, and they have every right to choose its direction and not be at the whims of 3rd parties that have downright poor records of holding back the progress of the platform.
It is extremely annoying to continue to see Adobe respond in this manner: dishonest and misleading, trying to link Flash with openness and completely ignoring Apple's mobile WebKit implementation that uses open standards, is an option FOR EVERYONE (iPhone OS device or not).
Adobe must think it's customers are stupid and blind to the obvious error in their argument. The world is moving on from being tied down to their products.