I heard this on the news here in the U.S. tonight.  I had to hunt for
the topic, but found it on abc website.
http://abcnews.go.com/wire/Living/ap20040615_1609.html

They were discussing this device for depression and when they showed how
it worked I thought to myself that looks like the VNS.  When they showed
the image of the device, sure enough that was it.  Interesting to me was
that they acted like this was a totally new device and never even
mentioned that it has been used for people with epilepsy.  They only
said that patients with depression were being helped.

Julie