The iPhone is a multimedia and Internet-enabled mobile phone by Apple, announced by company CEO Steve Jobs during the keynote at the Macworld Conference & Expo on January 9, 2007, that was released on June 29, 2007 in the U.S. The iPhone's functions include those of a camera phone, a multimedia player, and mobile phone. It also offers Internet services including e-mail, text messaging, web browsing, Visual Voicemail, and local Wi-Fi connectivity. User input is accomplished via multi-touch screen with virtual keyboard and buttons. Apple has filed more than 200 patents related to the technology behind the iPhone. The iPhone is a 2.5G quad-band GSM phone, though Jobs mentioned in his keynote that Apple has a "plan to make 3G phones" in the future. According to Jobs, the current version was not designed for 3G due to greater battery consumption, size concerns and AT&T's still immature 3G network.The iPhone is available from the Apple Store and from AT&T Mobility, formerly Cingular Wireless, with a price of US$499 for the 4 GB model and US$599 for the 8 GB model. Apple intends to make the phone available in Europe in Q4 2007 and in Mexico, Australia and Asia in 2008.