Could you move this discussion over to the PSTV thread?, after my mini rant...
I think at some point the PSTV was going to be 100% compatible with Vita games, it was called the Vita TV initially, but then someone at a design meeting said " HANG ON A MINUTE! If we make this fully compatible with the Vita, then why would anyone buy a Vita? " (a few seconds of silence) " HE'S RIGHT! SHIT! "
So they did something to kill compatibility, removed a small chip, or (hopefully) messed up the BIOS, then promoted it's PS4 connectivity and other things, and "oh, it also plays Vita games" was tacked onto the end...
I hope sony can patch in 100% compatibility...