To be fair, he's written and podcasted (atp.fm) about a bunch of examples in the last few months. They aren't directly referenced in this article, but I don't think he would necessarily have expected it to be picked up on slashdot in isolation. Things that come to mind include:
* iWork wasn't updated for years, then when a new version was released it seemed like a rush job as it was missing many features from previous versions. Some (not all) have been added back since, but the latest update removes some backward compatibility capability - it no longer can read some files which the previous version could. (Since the old version may at some point stop working on new OS versions, this is Apple saying to its customers "we don't care about your data, and you shouldn't trust us with it").
* The iOS update which stopped some users from making phone calls.
* The App store provides almost useless search results
* Some kind of iOS API bug to do with the parseing of resources by the App store caused his app Overcast to run as iPad-native, when it wasn't intended (or tested) to be.