E4 have apparently been running tests of the Big Brother interactive service in the last few days.
Although it's gone now this is a screenshot of the Big Brother eye that was shown:
Taken from
here
[img=320x240]http://www.bigbrother5.tvheaven.com/images/bb5_eye.jpg[/img]
[img=320x240]http://www.bigbrother5.tvheaven.com/images/e4_interactive.jpg[/img]
Looks familiar (if a little bland?)
[img=320x238]http://www.thisisbigbrother.com/gallery/albums/userpics/BB2-Reveals-More/normal_Untitled_71.sized.jpg[/img]
The difference being the lines are vertical rather than horizontal.