It’s not that I have a one-track mind pointed directly at cloud computing, but week after week the paradigm dominates discussions around cutting-edge infrastructure. This week, for example saw several new players — some of them rather large companies — step into the cloud ring with entirely new platforms. LongJump announced its all-inclusive PaaS offering; Computer Sciences Corp. said it will be launching an enterprise- and federal-grade cloud; Contegix introduced Zeus, its managed-hosting-style cloud; Akamai outlined its cloud strategy; and Tibco previewed its upcoming cloud application platform, Silver. But it’s Verizon Business, which took the wraps off its cloud service called, fittingly, Computing as a Service, that has me asking the most questions.