Apparently so - MOTU Pt 3 has been released on Hulu a day early, and DocArzt has the scoop. There's even a YouTube upload for those of us outside the USA and Canada!
I have to say I'm a little bit disappointed. I was hoping for something a little more in the way of revelations from Mysteries Of The Universe, but we're now past Part 3 and there still doesn't appear to be anything we don't really know already. Damon Lindelof said we'd learn new things about DHARMA when asked at Comic Con... but so far I'm not seeing any OMG worthy moments. What do you guys think?