Mat Honan, at Gizmodo:
But it’s still an island. It’s still a self-contained unit. You have to manage it yourself. It won’t grow unless you manually add tracks to it. There’s no serendipitous discovery. No social component. No Pandora or Last.fm-style suggestions that drop tracks you’ve never heard before, but already love. Google isn’t offering you a vast, new catalog. It’s just offering to hold your shit for you.
(Happy to see Gizmodo hire a good writer.)