We've finally moved to add PING 1.5+ onto Steam and are in the process of trying to get greenlighted! We could use all the help we can get! Also, we've included a demo for PC there too if you're curious how the first four worlds play.
We plan on most of the versions of PING 1.5+ being out before the end of July in one form or another. So be prepared.
We've listed our greenlight link below.