The iPhone SDK was released just two days ago and already we have an application built by a 3rd party developer for all of us to play with. The apps is called ToDo App and for now it will only run in the Aspen Simulator within Xcode, that is until Apple starts delivering signing keys to registered and paid developers.

I’ve downloaded it and played with it a little bit, it is very limited right now, it only allows one to add, edit, and delete to dos but I’m sure as the days and weeks go on it will become a little bit more useful.

This just goes to show you that this SDK is pretty powerful, it only took this developer a few hours worth of work and now we have a working app. I can’t wait to see what the developers are able to do in 3 months.

TUAW