There's a pretty robust emulator they're shipping end of the month. There will also be dev centers in London, Munich, Shanghai, Singapore, Tokyo, and Cupertino.

There's a pretty robust emulator they're shipping end of the month. There will also be dev centers in London, Munich, Shanghai, Singapore, Tokyo, and Cupertino. Finally, you can submit your app to them and they'll record a session with it, and you can ask them to focus on certain issues. I suspect once they start in-store demos, devs will be able to test their apps in person.