I also hope the various APIs of all these cloud-computing services (along with build-it-yourself alternatives like OpenStack) somehow coalesce or get meta-abstracted into a single API that works across all services -- akin to what Canonical is trying to accomplish with Project AWSOME[1] but across all major cloud environments. One can dream.
[1] http://www.canonical.com/content/canonical%E2%80%99s-awsome-...
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UPDATE: Thank you commenters for all the suggestions!