US bookseller Barnes & Noble could be launching a new version of its nook e-book reader, after it filed an application with the US government.
In the US, companies wishing to produce devices that use the radio frequency spectrum
must get authorisation from the FCC.
Barnes & Noble already sells a 3G model of the nook, which retails for $199 (£130). The retailer began selling its own e-book devices in November last year. Among its features is the ability to lend e-books to friends, a web browser and an email facility.