There should be a big change with youtube's connectivity with FB and Twitter. When you click on a youtube link in twitter, it takes you to the browser, which goes to the youtube site...which of course won't work.
If upon clicking a youtube link, users could be taken to the youtube app...then that would make the Vita just that much more functional.
You tube needs to Add an API Java script string that can be set up to divert to which ever app the OS wants, URL use is to generic for devices....
Be it PC Media player
Console or Web enabled TV Browser app
or Downloader app.
You'll have to pardon my ignorance, but I didn't understand a word of what you just said.