The Ubuntu operating system has been adapted to run on smartphones.

The Linux-based software will allow users to run desktop apps on their handsets, allowing them to double for PCs when docked to monitors.

The code will initially be released as a file which can be installed on Samsung's Galaxy Nexus phone, replacing Android.

Some analysts question whether consumers really want the power of a fully fledged computer on their phone.

Even so, Ubuntu's founder, Mark Shuttleworth, said he was in talks with manufacturers for devices to be sold with the system pre-installed within the year.

While he acknowledged the innovation would likely be limited to "enthusiasts and hobbyists" at first, he said it signalled a wider shift on the horizon.