Dispatch.io is a service that lets you manage your files across all of your cloud services. Dispatch is a recent graduate of Techstars New York. They were among the top 12 startups selected to pitch to a crowd of investors, entrepreneurs and tech enthusiasts.
Dispatch will allow you to drag and drop between services like Google Docs and Dropbox, and bundle multiple files together (across multiple services) and send them to friends or coworkers.
Dispatch is still in private beta.