There were some download links for an SDK and instructions. I didn't download anything right away (stupidly), and when I came back a couple hours later, all that stuff was replaced by this "currently on hold" message. Sigh.

EDIT: You can see info about SDK stuff on Google's cached version of some pages.

EDIT 2: You can still download the SDK here: https://snap.sonydeveloper.com/common/pages/documents/view/?...