i heard about-

They may not have been talking about the speed of light being different but the speed of the expansion of the universe being different earlier in it's 'life' than they thought.

I believe they always thought the universe started expanding more rapidly and was slowing down?

Now i think they have come to the conclusion from the observation that the expansion appears to be actually speeding up, instead. I think this is one [of several] reasons they are thinking they have to resurect Einstein's 'cosmological constant'.

Just my .02 from something i heard a while back...