John Bell on Steam’s Mac version, and cross-platform UIs in general. As I did in my post on Steam, he sees it as an example in favor of Apple’s stance on third-party SDKs in the App Store:
Apple has their head on straight with regards to ports. They want apps to be designed with iPads and iPhones in mind. If that means half the apps, that’s fine. PC computing never had trouble with sheer numbers of apps, it had trouble with quality. Apple is willing to give up some of the former for a lot of the latter.
via Lukas Mathis