yep id say infected looks like its growing a skin what does it smell/taste like?
like stux said if you keg do it.
if you bottle ditch it or let it do its thing as an experiment. you never know how it will turn out.
ive had a similar looking infection before ended up being aceto.
I get a similar skin if I run my taps into a bucket and... forget about the bucket until I'm next back in the brewery. I don't think it's supposed to be in your fermenter and I've never seen shit like that in my fermenter, only where I've really done the wrong thing.