Filed under: iPhoneI've lately been guessing that Booyah might eventually hook up with Ngmoco, since they're both iPhone gaming/app companies with somewhat similar goals that could help each other out. But it looks like Booyah doesn't need any help any more -- it's just raised a whopping $20 million from investors in a new round of funding. Booyah was originally included in the iFund investment, but that contribution pales in comparison to this one, which sets Booyah up as one of the heaviest single-brand hitters in the