Guess you’d seen the teaser videos on what the new Google Play is all about. If you are running Android 2.2 (Froyo) or higher versions of it, you should automatically be getting the Google Play upgrade. If you’re too very curious to try it out while you wait for the upgrade, you can find the download (apk file) link below.
DOWNLOAD (takes you to Dropbox)
Installation is quite straight forward. Just click on the apk file and install. Make sure you’ve checked (i.e. allowed) installation from Unknown Sources (under Settings–Applications).