Been dutifully uploading music to Mountain View's cloud since Google I/O? Might want hit pause for just a sec, while you tune to Google's beat here in Los Angeles, as it's just gone and launched its own music store integrated with Android Market. Best part is, the service still free, though you can now purchase millions of songs from the store to expand your collection of tunes. 90-second track previews are available, and all songs are high quality 320kbps MP3s. And for those with an aversion to
