For those who don't know, Hyves is the largest social networking site in the Netherlands, although in recent times they're facing fierce competition from Facebook. It's ironic that Facebook is indirectly helping them with HipHop.
That's the beauty of open source. Let the best implementation win, not the competitor with the most marketing money. I have had this conversation with older business-type people who don't quite understand why we might want to make certain aspects of our code available, they just see it as enabling competition but everytime a competitor has come along it just energizes us to innovate harder and over the years I can look back and see that some of our best work was done in the months after a new potential competitor appeared.