Barence writes "Dell has issued court papers in the US, accusing Psion of fraudulently laying claim to the term netbook. Psion sent out warning letters late last year to PC manufacturers, retailers and bloggers alike, asking them to stop using the term netbook, which the company registered as a trademark in the late 1990s. But in a Petition for Cancellation of Psion's trademark, the PC manufacturer accuses Psion of abandoning the term and fraudulently claiming it was still in use. 'Psion is not currently offering laptop computers under the Netbook trademark,' Dell's petition claims. The petition also claims that Psion made false statements about its use of the term Netbook in a sworn declaration to the US Trademark Office."