I am not sure how busy you are but if you have a moment you might find this of interest. I was the student who had to leave early today and brought up the use of tongue stimulation as a method of therapy for "wobblers". You asked me at the time if someone was involved in the project and I cannot remember who you named so I found the relevant articles.
The article about the woman involved in the experiment can be found here: http://scienceblogs.com/neurophilosophy/2008/07/perpetually_falling_woman_learns_to_balance_with_her_tongue.php
A video of her improving her balance can be found here: http://www.youtube.com/watch?gl=US&feature=related&hl=iw&v=Z36LxkWt0Dk
I hope that clears up the question of whether or not the researcher you mentioned was involved.
As well as a tack on bonus considering we are doing a unit on vision I thought these two articles might be of interest:
A new imaging technique allows for imaging of rods and cones in great detail (published yesterday): http://www.opticsinfobase.org/boe/abstract.cfm?uri=boe-2-7-1864
The images are found from page 6 onwards if you wish to skip the reading.
As a final note the idea of using a 500x500 array of electrodes for recording or inducing vision got me thinking back to an older article I read that deals with facial hallucinations (sort of along the lines of the person/fire hydrant/car image you showed us), the article can be found here and the upscaling images are found on page 4: http://www.iipl.fudan.edu.cn/~zhangjp/publications/ICME2009.pdf
If you do not have time to bother with these I fully understand,
Thank you for your time,
I doubt this will be of interest to many but the video showing the woman's ability to balance with the help of electrodes on her tongue is awesome.