Archive for March, 2009|Monthly archive page

Apple’s $99 iPhone OS Upgrade

I’ve heard of people actually joining the iPhone Developer program, and paying the $99 fee for that priviledge, who aren’t developers and don’t have any intention of developing just to get iPhone OS 3.0 a few months early. While I think the changes in the OS are good and I won’t hesitate to spend the $9.95 to upgrade my Touch, I wonder what the intense attraction is that would provoke them to spend half to a third of the original purchase price on an OS upgrade.

I also wonder if this was a calculated move on Apple’s part to see just how far their fans would go. I hope  that is just the cynic in me talking and not reality but you have to wonder. I think one of Apple’s strategies is frequent “testing of the waters” when it comes to their customers, how their customers react to news and to what lengths customers are willing to go (for example, standing in line outside of an Apple store for a new whatever).

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The Objective-C Dot Notation Debate

The debate over Objective-C 2.0’s dot notation continues. The latest to touch on the subject are Danny Greg and Kevin Hoctor on the terrific CocoaFusion podcast. I figured I’d weight in on the topic too.

Personally I agree with Matt Gallagher on the topic in that properties are not just a new way to define and use instance variables. They specifically define the state of an object and separate that from what an object can do, the methods.

Besides, they really clean up the code. The less brackets there are the easier it is to read the code. That is always a good thing.

What strikes me as surprising is that none of the Cocoa programmers that have addressed dot notation have seemed to notice that they’ve been doing dot notation using key paths for a while. Dot notation, as I see it, is a further formalization of the key path syntax.

Oh, and by the way, my background is not in languages that usually use dot notation. I have more of a history with Smalltalk then Java. And while I haven’t been coding in Objective-C for long it has been since before the release of Objective-C 2.0 so dot notation and properties were something I had to wrap my brain around and decide if I liked it or not.