Apple this morning confirmed an additional 90 sessions and labs for its annual developer's event, WWDC 2008, meaning details of over 150 sessions and labs are available online now.

WWDC this year will offer developers in-depth information on Mac OS X Leopard and the iPhone OS, including a dedicated iPhone track for the very first time.

"Whether you're interested in the application possibilities of iPhone, Mac OS X Leopard, or both, the sessions and labs planned for this year's Apple Worldwide Developers Conference will have what you're after. Packed with in-depth information, expert guidance from Apple engineers, and hands-on learning, WWDC sessions are designed to help you take advantage of all the latest technologies," Apple explains in its latest communication with members of its developer network.

iPhone users who have been hoping for applications designed to allow them to record audio with their device shouldn't have to wait too long, the WWDC line-up informs. The Audio Development for iPhone track promises to show developers how to make their applications do just that.

Additional treats suggest Bonjour support, advanced CSS support, and a whole heap of additional applications on the way for Macs and iPhone as Apple takes the wraps off just some of what it's been spending its research and development budget on this year.

The company has also announced the Apple Design Awards, introducing two iPhone awards for the first time: iPhone Developer Showcase and Best iPhone Web Application.