My only complaint with Google Music is that it’s not very smooth (unless you go into the landscape album view) which I’ve always found frustrating. It’s likely that because this will be replacing the stock music player app in CM9 going forward, streaming your music from the cloud should remain intact (update: it wont until Google releases their streaming API’s. Until then, this music player will remain crippled).
Best part about the new modified Google Music app? Once available in CM9, it will also be available for everyone to download via the Android Market — whether you’re rooted or stock.
Via The Verge