Sony Ericsson announced that five-time Grammy Award-winning artist Usher will headline Sony Ericsson’s Walkman music phone campaigns in North America. The partnership covers the United States and Canada, in addition to more than twenty countries in Europe and will include title sponsorship rights for Usher’s North American tour later in the year. Sony Ericsson will engage in joint marketing activities with exclusive wireless operator, AT&T in the United States. Usher will discuss the details of the partnership and make a surprise announcement at a press conference at the Sony Club at the Sony Building in New York City on May 28th.

Sony Ericsson introduces a new HSDPA phone, which is clearly designed to take its range of web-enabled phones in a different direction. The compact Sony Ericsson G502i brings the power of the web to a mainstream audience. The Sony Ericsson G502i is the latest in an established line of classic Sony Ericsson phones that cram a wealth of time-saving features into an affordable, pocket-sized phone. The Sony Ericsson G502i is the first such model to feature high-speed HSDPA capability. This means that more users can now benefit from faster browsing and downloading capabilities in a phone that has a feature-set that is impressive and incredibly easy to use - perfect for those who want to stay in control of their lives.

The new Sony Ericsson phone is clearly designed to take its range of web-enabled phones in a different direction. The Sony Ericsson Z780 expands the company’s range of devices for markets outside of Europe. The compact Sony Ericsson G502i brings the power of the web to a mainstream audience. The Sony Ericsson Z780, a sister product to the recently announced Z770, is set to broaden the range of web-enabled phones into more markets across the globe. It packs tri-band 3G and HSDPA into its stylish clamshell frame, letting you receive email or browse the web at high speed in countries across the world. It also introduces built-in aGPS, giving users the opportunity to carry their navigation solution with them on their phone.

Sony Ericsson confirmed that it will be running Windows Mobile 6.1 on its stand-out arc-slider phone, The Sony Ericsson Xperia X1, the innovative multimedia phone announced at this year’s Mobile World Congress. Using Windows Mobile 6.1, together with Sony Ericsson’s unique Xperia panel user interface (UI), will enable a highly user-focused experience with enhanced connectivity, messaging and multimedia features.

Sony Ericsson stems from the cooperation between Sony and Ericsson in the year 2001, a so-called joint venture. It is Sony's know-how on the field of digital cameras that is used for developing Sony-Ericsson's cell phones. Worldwide Sony Ericsson is ranked fourth on the mobile phone market. The company is positioned directly after Nokia, Samsung and Motorola with a market share of more than 9 percent.

• Read our full Sony Ericsson K850i review.

Sony Ericsson unveiled the T303 mobile phone, an attractive cell phone that is small and neat enough to carry with you on every occasion. This compact slider phone has been given the high-end treatment, with a mirrored screen, metal housing and chrome finish. The Sony Ericsson T303’s diminutive size is distinctive for all the right reasons. Because it doesn’t take up much room, it’s perfect for those nights out when space is limited and not everything can come out with you. The Sony Ericsson T303’s compact size means that this phone will always be one of the chosen few.

Some cell phone brands are known to be the first to integrate innovative techniques in their mobile phones. When Sony Ericsson introduced the W910i an innovation was born, ready to reinforce the Sony Ericsson Walkman series. The Sony Ericsson W910i comes in a transparent plastic box including a USB card reader, user's manual, software on a CDROM and a USB cable for easy connection. Looking at all this I couldn't wait to start testing the W910i. The elegant slider phone looks simply beautiful. HSDPA, Walkman 3.0 and shake control make us believe we are dealing with a high-end mobile phone here. Will this handset live up to our expectations? Read on and find out if the Sony Ericsson W910 is a winner or not.

• Read our full Sony Ericsson W910 review!

A totally new brand has been launched by Sony Ericsson; Xperia. Xperia meets the growing need for mobile Web communication and multimedia entertainment. With Xperia Sony Ericsson will position itself at the forefront of mobile convergence. Today marked the launch of Xperia and a new era in mobile communications with the announcement of the Xperia X1, a stand-out, arc slider phone from Sony Ericsson designed to address the growing need for a premium, converged mobile experience. The Sony Ericsson Xperia X1 combines a 3-inch clear wide VGA display and a full QWERTY keyboard within a quality metal-finish body. With Windows Mobile inside, the Sony Ericsson Xperia X1 lets you choose from a dynamic range of activities at anytime and anywhere.

The new Sony Ericsson G900 phone is designed to give back time. The G900 places personal organizer features and easy finger-touch control within familiar form factors. The new Sony Ericsson cell phone is a new generation of phone: Touchscreen organizer with a broad appeal. The Sony Ericsson G900 handset is an essential tool designed to organize the lives of all those with busy schedules to juggle, both at home and at work. The new Sony Ericsson G900 has all the functions of the G700 with the added features of a unique new 5.0 megapixel Touch Auto Focus camera, touch photo album and editor. Perfect for those looking for a one-touch media experience combined with their organizer.

The new Sony Ericsson G700 is finger-touch ready and will save you precious time. At least this is the credo of Sony's new mobile phone. The new Sony Ericsson G700 will give you access to personal organizer features and touch control. The new generation G700 phone is a touchscreen mobile with a broad appeal. The Sony Ericsson G700 phone is an essential tool designed to organize the lives of all those with busy schedules to juggle, both at home and at work. The G700 mobile is here to help you live your life to the full. This personal organizer in-your-pocket keeps your contacts, calendars, notes, pictures and favorite Web sites all in one place and just a fingertip away. Touch and go.