Troika’s second installation at Heathrow, ‘All the Time in the World’, (also previously mentioned), takes extremely simple and decades-old electroluminescent segmented display technology and updates it by giving it a new typography of segments, so that the display appears attractively handwritten.
[See previous post at http://workbeautifully.blogspot.com/2008/11/where-am-i-going.html]
Iconeye wrote about these and a few other choice works in its feature a while ago about how redundant technologies are being recycled by up-and-coming designers.
Other examples include:

[YOUTUBE.COM. 2009. 'PixelRoller (19/10/06)'. Available at: http://www.youtube.com/watch?v=O4_Q4MemtaA. (Accessed: 24/04/09)]
‘Changing Cupboard’, which transforms itself at intervals using the same technology as mechanical billboards. Created by Swedish design collective Front, they deliberately chose this technology rather than the more sophisticated screen technologies available, to add to the charm of the effect.


[YOUTUBE.COM. 2009. 'PixelRoller (19/10/06)'. Available at: http://www.youtube.com/watch?v=O4_Q4MemtaA. (Accessed: 24/04/09)]
‘Pixel Roller’, by London studio Random International. Inspired by dot-matrix printing, a paint roller paints a picture on a wall rather than a solid field of colour. There’s also ‘Light Roller’, which paints with light on a glow-in-the-dark surface.
More info can be found on the full article - http://www.iconeye.com/index.php?option=com_content&view=article&id=3354[WILES, William. 2008. ‘Design and redundant technology’. Iconeye [online], 058. Available at: http://www.iconeye.com/index.php?option=com_content&view=article&id=3354 (Accessed: 24/04/09)]