David Einhorn-led legal action wants to unlock more of Apple's cash reserves

Presto layout engine dies in 2013

If you show on this map, lag your loft

Mobile phone sales are down but smartphone sales remain strong, says Gartner

Rackspace has posted impressive growth figures but that doesn't impress investors

TV signals could be used to locate aircraft as 5G plans take shape

Merissa Mayer says partnership with Microsoft is not helping against Google

Former BT boss leaves telecoms kit maker after four years

Another major Dell shareholder has spoken out against the £15.6bn buyout, arguing it short-changes investors

Open source Apache OpenOffice is worth £13m a day based on the number of average daily downloads