Is it possible that Apple does or will provide an API for Siri? It would be great if I can be sipping my coffee and say,
User: Hey Si
When the iPhone was first released, there was absolutely no public talk from Apple about custom app development. The delayed release of the SDK gave them plenty of time to get public feedback on the iPhone user experience and make the SDK ready for public use.
It seems likely that they're taking a similar approach with Siri.