Their new app badges[1] say "Get it on Google Play". It's not clear at all what platform you'll be getting it for. Most people know they have "an Android", not "something with Google Play". Bit of a step back.
I expect that Chrome apps will get transitioned to Google Play at some point as well as whatever future platforms Google supports. It makes sense to be more generic in that case.
[1] http://www.android.com/developers/branding.html#google_play