Map Reduce is hardly secret and it's not like other people such as Yahoo!, Facebook and others aren't using it. Google might have a head start but that's about

Map Reduce is hardly secret and it's not like other people such as Yahoo!, Facebook and others aren't using it. Google might have a head start but that's about it. I wonder how long that head start will last with a collaborative Open Source project backed by some other big players (that would be Hadoop).