Everything old is new again as Sony Ericsson brings back the flip phone ... Our coverage of THE big US cell phone show. Hands-on with new phones from Samsung, Kyocera, Nokia, LG, Sanyo, Motorola ...

Two world mobile phone giants, Motorola and Ericsson, were recently summoned to the Intellectual Property Division of the Beijing High Court for violating a patent registered by two Chinese inventors.

Ericsson has released a PDA to communicate with its mobile phones. But hang on, isn't it just a Psion Series 5mx with an Ericsson badge on the front? We report on what else this rebadged PDA can do.