I was thinking on my drive to work this morning about Apple's PIM lockdown and why they won't let devs have access to the calendar, but they'll let them go hog wild on contacts. Here's my theory: Apple plans to release a "pro" version of their PIM, either as an upgrade or standard on the phone, but at some point in the future. They've obviously been pushing mail into the direction of being more outlook-ish, with tasks and notes integrated. Plus they've got their word, spreadsheet and powerpoint programs as well. Combine that with the exchange support in the iPhone, and there's a pattern; the iPhone is the same trojan horse on the business side as it is on the consumer side. The whole purpose is to draw people into the Mac OS ecosystem, and the best way to lure businesses is to compete with outlook. It's not a perfect theory, but it's as good as any to explain why Apple steadfastly refuses to allow anyone to sync with to-dos in iCal, and why no 3rd party can create a task program with alarms or have access to the calendar APIs in the SDK. Any thoughts on my wild speculation?