On Instacast and iCloud →

Martin Hering:

We are using a technique known as document storage. Instacast simply saves its state into one single document that is pushed to other devices. Using this document Instacast on other devices can be updated accordingly. That’s the theory.

In practice there are a lot of pitfalls.

This is a great article outlining what it’s like for developers to use iCloud day to day. It seems like the service has a way to go in terms of robustness when it comes to certain use cases.