Today Apple announced that its annual WWDC conference will start with a keynote from Steve Jobs on Monday, June 7 at 10 a.m. Pacific Time. It is rumored that Apple CEO will finally introduce iPhone 4G.

The company has also revealed that the conference will include hands-on working labs for iPhone OS 4, Mac OS X core technology labs and the iPad development sessions. The event will be divided into five key technology tracks:

• Developer Tools
• Graphics & Media
• Internet & Web
• Application Framework
• Core OS

The company's engineers will focus on iPhone OS 4 and conduct more than one hundred solutions-oriented sessions and labs, so it may be possible that Mac OS X 10.7 won't be previewed.

The tickets on the WWDC had been already sold, though they increased from $1,259 to $1,599.