Android's remarkable rise in such a short period is showing no signs of slowing down. Just the opposite, actually. According to Androlib.com , a popular website that lets you browse apps for your Android phone, over 1 billion apps have now been downloaded from the Android Market.
Pretty impressive when you consider the service launched less than two years ago. And sure, it's still only a fraction of Apple's App Store downloads, but that fraction is growing bigger by the day. At last count (back in January), App Store downloads topped 3 billion .
Despite the high number of downloads (and probably as a result of), there remains a disproportionate amount of free apps versus paid ones. That's certainly helped the Android Market grow in numbers, but it's a Catch 22 for developers hoping to cash in.