Sales of Research in Motion's Blackberry mobile email devices in the first quarter of 2006 have increased by more than 30% since last year, according to new data from Gartner.

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Samsung has admitted that parts of the user interface design for a new mobile phone were copied from Apple and Microsoft, Korean media reported on May 7.

Solid business results outside Japan, including robust sales of optical transmission systems in North America, outsourcing services in the UK, and hard disk drives in overseas markets, helped to offset sales declines in servers and PCs in Japan.