I was thinking recently that, when the iPhone was released, it was a closed system and the stated reason was that Apple wanted to ensure stability. Well, that didn’t stop people from hacking and making their own apps anyway (apps that go mostly in the way of customization). Well, none of those apps seem to have created instability in the device, so I was glad to see that Apple is working on an SDK for iPhone. Not that I have an iPhone to use. But still, if I were to get one… good to know.