In 1998, using Psion’s experience in small mobile operating systems, David led the creation of Symbian Limited in partnership with Nokia, Ericsson, Motorola and Matsushita to create the operating system standard for mobile wireless devices - now known as Symbian.
He no longer acts regularly but lives and works in Cambridge working as a programmer for various technology companies (previously Nokia & Symbian).
In 2000 he was appointed Head of User Research at Symbian, later becoming Vice-President and Head of Design.
The Symbian variant of Hildon was discontinued with the cancellation of Series 90.
The runtime consists of a virtual machine that implements the scripting language (JavaScript or Lua) used by Kony Studio, coupled with the library for each device platform – BlackBerry, Windows Mobile, Java, Symbian, and browser clients.
On August 12, 2009, it was announced that Office Mobile would also be released for the Symbian platform as a joint agreement between Microsoft and Nokia.
Mobiola Video Studio is a video converter of movies, DVDs, YouTube, Metacafe, Google Videos to the video format appropriate for the iPhone, iPod Touch, iPad, BlackBerry, Windows Mobile, Symbian, Java MIDP 2.0, Palm, Android, and Sony PSP devices.
Technology writers have criticised Nokia CEO Stephen Elop's implementation of the plan to shift away from Symbian to Windows Phone for its mobile software platform, as an example of the Osborne Effect.
QR codes can be used in Google's Android, BlackBerry OS, Nokia Symbian Belle and Apple iOS devices (iPhone/iPod/iPad), as well as Microsoft's Windows Phone operating system, Google Goggles, 3rd party barcode scanners, and the Nintendo 3DS.
The Symbian Foundation was a non-profit organisation that stewarded the Symbian platform; an operating system for mobile phones, based on Symbian OS, which previously had been owned and licensed by Symbian Ltd..
However, all developments in UIQ was halted in 2008 when Symbian Foundation was formed, choosing Symbian S60 as the platform of choice.
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S60 is the UI choice of Symbian Foundation; UIQ will contribute its assets to the foundation.
The smart phone dialer softphones have versions compatible with iPhone and iPad, Android, BlackBerry, Symbian and Windows.