Google, like Amazon, hasn't secured licenses from the four major recorded-music companies, according to these people, and is likely to include a system that functions much like a remote hard drive. Users of the service are expected to be able to listen to songs they have uploaded to the service in a so-called streaming mode but won't be able to download the files themselves. That limit appears to be a bid by Google to hinder the service from being used to spread pirated music. Google is likely to announce the service Tuesday at its annual Google I/O developers conference in San Francisco, these people said. Initially, the service is to operate in a testing mode, and not be available to the public at large. Get the full story at The Wall Street Journal (free content)