Apple has begun selling tickets for its Worldwide Developer's Conference (WWDC) in August.

The company today revealed a few further details concerning what developers can expect at the event, promising them they "will be one of the first to preview Mac OS X Leopard."

"You'll get the chance to explore the latest Mac tools and technologies, and to learn the advances that are keeping Mac OS X far, far ahead of the competition," the company promises, revealing that over 120 sessions are planned that will cover the gamut of the company's OS technologies.

Topics covered will include: Application Technologies, Development Tools, Graphics and Media, Information Technologies and OS Foundations.

WWDC 2006 takes place at the Moscone Center West in San Francisco between August 7-11.

Developers registering before June 23 can save $300 on the ticket price. Tickets cost from $1,295 at the discounted price.