The PocketStation returns as an app for the PS Vita if you live in Japan.
If you remember, the PocketStation was a handheld device that was a peripheral for the PSOne. It now returns as an app for the PS Vita. If you live in Japan, the PocketStation is available now for free if you are a PlayStation Plus subscriber.
The original PocketStation was only released in Japan so it’s likely this app will be a Japan only release too.