As you may have known Google has already launched their cloud base music. Those with Android Market v3.3.11 seem to have tabs for music already. I did not see mine in my Anroid Market App so I decided to download the Android Music App itself.
However, it seems that Android Market v3.3.12 is already for out for download according the tweet by @Peter Alfonso
I decided to download the apk at his site and install it in my HTC Evo 4G.
There was really nothing new except for the added tab for Music. We can only speculate whether tweaks were made under the hood.
T-Mobile on the other hand insisted that to avail of free music, users must download Android Market 3.3.12. Marketing strategy or not , one can only guess.
Click on the link box below to download Android Market v3.3.12. Already tried and tested in my HTC Evo 4G