Amazon Web Services (s amzn) announced on Tuesday afternoon that its Simple Storage Service (S3) now houses more than 449 billion objects. The rapid pace of S3’s growth is a microcosm of both AWS’ overall business as well as cloud computing in general. At Structure 2011 last month, Amazon CTO Werner Vogels told the crowd that S3 was storing 339 billion objects. At this same time last year, the ser