The Apple Worldwide Developers Conference (WWDC)  aka WWDC 08 will be held in San Francisco at June 9-19, some facts ot tips here :

Tagline : Watch.Learn.Code
The Apple Worldwide Developers Conference (WWDC) is the only place you can receive technical information on developing for Mac OS X Leopard and iPhone OS from the engineers who created them. See the details on over 60 sessions and labs including sessions for the first ever iPhone track.
So if you are real mac lover,or just mac developer, why not jon us to held the party. Be the first to see Leopard and Iphone OS Developer, See you there.Soon.

Some Facts :

In-depth technical sessions Dive deep with presentations on the technologies that power iPhone OS, Leopard and Leopard Server, and code along with Apple engineers in practical “how-to” sessions.
Hands-on labs Bring your code to the iPhone, Mac, and IT labs where you can work one-to-one with Apple engineers and user interface designers. You’ll get answers to your most critical questions, insight into development techniques, and best-practices on optimizing features that will define your product’s success.