We're in the process of re-building an online player for a website.
Most radio stations still use pop-up windows (examples: BBC Radio, and pretty much anything Radioplayer) for integrated online streaming. For a bit of background, these are usually about the dimensions of a portrait phone screen.
There are otherwise very few use cases nowadays that really should utilise pop-up windows. I wouldn't be surprised if, in a few years, pop-ups became completely unsavoury compared to tabbed browsing.
So my question is, should an online player continue to use pop-ups, or is it a good idea to move to a (mostly) full-screen new-tab layout?