Personal Digital Assistants (PDAs) including the more recent smart phones have the potential to act as universal remote controls. They have all the key elements that are needed for a universal remote control: they are small, programmable, have a large high quality touch screen and an infra-red facility based around the 802.11 IR standard.
The earliest platform to get this facility were phones based upon the Palm OS, with its Omni Remote application, which will operate on all modern Palm PDAs. However, alternative applications are those that run on Windows Mobile operating systems, including the popular iPAQ range from HP-Compaq. Finally, there are applications for the Symbian OS devices which include the Nokia smart phone range.
These solutions generally require third party applications costing between £10 ($14) and £30 ($42) from, for example, Nevo.