Industry Gamers just reported that Playdom purchased 3 Melons. They didn't disclose what the purchase price was which makes me believe that they got it for a song.
I saw the founder of 3 Melons present at Unite 2009. He showed off a bunch of the tools that they created for use in producing their Unity Lego title, really a lot of impressive stuff. Hope that it was a good move and that they did alright by the deal.
Anyway, here's the article: