Dear Apple,

I’m using your highly priced ( but for the most part awesome ) iPhone. When people cash out that much money for a phone, the least you can do is open up your API to allow other 3rd party applications to interface with it. Because of your closed iPhone calendar API for example, I’m unable to sync my OSS Zimbra with my iPhone. Lucky you, Apple, for not being as closely watched on lock-in practices as Microsoft is. Don’t worry, keep up this kind of unethical practices and I’m sure it’s just a matter of time.