( Wired ) -- Apple has announced that CEO Steve Jobs will be emceeing the company 's annual Worldwide Developers Conference keynote on June 7 in San Francisco . Continuing his trend of doing one-to-one e-mail marketing for his $ 43 billion ( revenue ) company , Jobs himself helped tout the conference with a personal e-mail to a customer over the weekend . The developer 's conference attracts greater than usual attention because , for the past two years , Apple has used the venue to announce the latest version of its iPhone . Gizmodo may have spoiled the surprise this year by leaking what has been confirmed by Apple legal as a prototype of the fourth-generation iPhone . However , in an e-mail exchange with a customer over the weekend , Jobs said the event would still pack a punch . `` I hope you have some good WWDC announcements to blow [ Google ] out of the water , '' a customer wrote to Jobs on Saturday . `` You wo n't be disappointed , '' the CEO responded , according to a report published on MacRumors.com . As usual , the keynote address will be held in the Moscone West conference center to kick off the five-day WWDC conference , which includes hands-on sessions for software developers to become familiar with iPhone OS 4 and Mac OS X . In addition to new iPhone hardware , Apple is expected to give further details on its next-generation mobile operating system , iPhone OS 4 . The company in March previewed iPhone OS 4 , which introduces support for multitasking and the ability to group apps in folders , among other features . Apple 's 5,000-seat WWDC 2010 event sold out in eight days . The conference is designed to recruit and educate developers supporting Apple 's iPhone OS and Mac OS platforms . The importance of WWDC continues to increase as Apple 's rivalry with Google becomes more fierce in the mobile space . Google last week held its sold-out Android developer conference , Google I/O , where executives spent a generous amount of time delivering potshots on Apple 's iPhone platform . `` If Google did n't act , we face a draconian future . One man , one company , one device would control our future , '' Vic Gundotra , vice president of engineering of Google , told attendees at the conference . `` If you believe in openness and choice , welcome to Android . '' Subscribe to WIRED magazine for less than $ 1 an issue and get a FREE GIFT ! Click here ! Copyright 2010 Wired.com .
Steve Jobs ' keynote address will kick off Apple 's five-day WWDC conference . `` You wo n't be disappointed [ with my keynote ] , '' said the Apple CEO in an e-mail to a customer . Gizmodo may have spoiled the surprise by leaking a prototype of the new iPhone . Apple is also expected to talk about its next-generation mobile operating system .