Being a blogger in the Apple ecosystem, I'm used to seeing numbers that are completely staggering -- the number of iPads sold during an introductory weekend, for example. But when an iPhone app is able to pull in a huge number of downloads in a very short timeframe, I really pay attention. That's the case with Draw Something ($0.99), a social game that has not only jumped to the top of the paid apps chart in 79 countries, but has also been downloaded a whopping 20 million times in the five weeks that it has
