Hang On Philae, someone will find you..

With its small dimensions of a meter cubed it may take many eyes.

>>>Skip to someone elses claimed sighting through this link <<<

At this link you may take a while getting zoomed in so i've done it for you for image two and six

And then come back with input on that and what is below.

We may soon find out what this bright spot might be. An artifact from image processing is one possibility since the source page mentions a lot of processing.

Input from Ken at the an ESA Blog comments page has brought to light the generating feature of the bright spot and gave provided the following image.

The image below was zoomed in the browser to 1025%.