>>2 They are real silly if you have not been living under a rock the 2 years or so, but at the moment they are shit.
also it's "links or didn't happen" not *pics or didn't happen*.
>>3 aya there are a bunch of companies trying to develop them :P
BBC news links - copy and past -
http://www.bbc.co.uk/news/technology-30531120
http://www.bbc.co.uk/news/technology-33785285