Dr Astro Teller, director of Google's secret X lab, has described Google Glass as the 'poster child' for privacy issues - but insisted we'll 'be seeing a lot more' of the technology very soon.

Speaking at South By Southwest Interactive Festival in Austin, Texas, on Tuesday, the 44-year-old defended the headset by saying it just used cameras that were already in existence. 

He also slammed the way people use Google[x] to highlight privacy concerns.

Slam it all you want. We're still going to highlight it. To read more and view the video, click here.