I think that this will be used in Sun's datacenter solutions and datacenter in a box dreams. They have all the other key parts for it except they've been using other companies products for the data part of datacenter. Plus mysql is a company you can buy and control where with postgresql I don't think you can buy the global development group since it seems to be a collection of developers. I don't know enough about postgresql though so i could be mistaken. Seems like a pretty good business decision to me.