After months of speculation that Apple would soon launch a Pandora-like streaming music service, it now appears that Google will beat Apple to the market by launching its own streaming service, although the Mountain View company’s effort will be more akin to on-demand Spotify than it will be to a radio-like Pandora. Music industry sources speaking with The Verge this week indicated that Google would unveil the service at its I/O event today in San Francisco. The company reportedly has…