Today at a town-hall meeting at Apple's Infinite Loop campus in Cupertino, Steve Jobs showed off the iPhone software developer's kit for the first time. There has been a lot of speculation about what the kit would include, and what it specifically wouldn't. Now Steve Jobs says it will have the same APIs and Tools that Apple itself uses to develop iPhone apps. Here are details:

• Apple combined mouse and keyboard Cocoa with our multitouch knowledge to build Cocoa touch for the iPhone SDK.

• Core OS has the OS X Kernel, Lib System, BSD TCP/IP, Sockets, Security, Power Mgmt, Keychain, Certificates, File System, Bonjour

• Took everything we knew about creating stuff with Cocoa and everything about a touch API for iPhone to build Cocoa Touch

• Cocoa is great, but based on mouse & keyboard input

• Used all of the above (except Cocoa) for iPhone OS

• Cocoa, Media, Core Services, CoreOS

• Has all audio/video capabilities: Core Audio, OpenAL, Audio Mixing, Audio Recording, Video Playback, JPG/PNG/TIFF, PDF, Quartz (2D) Core Animation, OpenGL ES

• "The Media layer is everything you'd expect from Apple"

• Also include SQLite, Core Location

• Cocoa Touch: Multi-Touch events/controls, Accelerometer, View Hierarchy, Localization, Alerts, Web View, People Picker, Image Picker, Camera

• Everything is hardware accelerated for performance and long battery life

• OpenGL ES is the embedded version of OpenGL, "absolute screamer" on the iPhone

• Started there and enhanced it to work with the iPhone

• Xcode is our dev environment and what we use to build everything for Mac OS X

• "This is the architecture of the iPhone OS. It is the most advanced platform out there for mobile devices. We are YEARS ahead of any other platform for mobile devices."

• Integrated documentation, "Shipping a lot of great documentation with the SDK, and you can access it within the software"

• Project management, integrated source control

• Xcode will now code complete for the APIs in the SDK

• Can connect to iPhone like the remote debugger and see live performance of your app on your Mac from the iPhone

• Instruments: "Comprehensive suite of performance analysis tools"

• Do code connections within Interface Builder, connect it right to the code

• All the controls from Cocoa Touch are built right into Interface Builder

• Interface Builder: "Makes building your user interface as simple as drag-and-drop"

• Remote debugger--plug in your iPhone, run it on the iPhone live, but debug from the Mac

• Run your iPhone app in the simulator on your Mac, works great side-by-side with Xcode

• Introducing brand new iPhone dev tool: iPhone Simulator

• See peaks and valleys, realtime data, timeline view, multiple data tracks