We can’t say it comes as much of a surprise, but Google has just taken the wraps off of a service many of us have been waiting for years to see… or should we say, hear. Google’s freshly unveiled Music Beta service will give users a cloud-based solution for storing and streaming their digital music collections — and we mean, their entire collections; Google’s service supports the storage of up to 20,000 songs as opposed to the 1,000 tracks supported by Amazon’s Cloud Drive product, which Music Beta will compete with directly. Google’s Music Manager app supports Windows and Mac, and it allows users to upload their tracks directly to Music Beta. The Web-based music manager is a full-featured music player that supports organization, playlist creation and plenty more. The related Android app features all of the same functionality as the Web player, and playlists created on one device will instantly be available on all devices. Recently played music is always cached by the mobile player, and albums can also be downloaded and stored for playback when data connections are unavailable. Music Beta is available initially by invitation only, and it is free — at least, it’s free during the beta period. Google’s updated music app with Music Beta support is available in the Android Market beginning today.